Home / 8,010.39-11,059.52-7,169.62

Finding the Fourth Proportional to 8,010.39, 11,059.52 and 7,169.62

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Solution

The fourth proportional to 8,010.39, 11,059.52 and 7,169.62 is: 9,898.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,010.39 : 11,059.52 = 7,169.62 : x
  2. Step 2: Convert to fraction form
    8,010.39/11,059.52 = 7,169.62/x
  3. Step 3: Cross multiply
    8,010.39x = 11,059.52 × 7,169.62
  4. Step 4: Simplify right side
    8,010.39x = 79,292,555.78
  5. Step 5: Solve for x
    x = 79,292,555.78/8,010.39
  6. Step 6: Final answer
    x = 9,898.71

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Find fourth proportional to 4,005.20, 5,529.76 and 3,584.81
Half scale
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Double scale
Find fourth proportional to 8,011.39, 11,060.90 and 7,170.62
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.