Home / 8,001.20-11,047.56-4,861.60

Finding the Fourth Proportional to 8,001.20, 11,047.56 and 4,861.60

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Solution

The fourth proportional to 8,001.20, 11,047.56 and 4,861.60 is: 6,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.20 : 11,047.56 = 4,861.60 : x
  2. Step 2: Convert to fraction form
    8,001.20/11,047.56 = 4,861.60/x
  3. Step 3: Cross multiply
    8,001.20x = 11,047.56 × 4,861.60
  4. Step 4: Simplify right side
    8,001.20x = 53,708,817.70
  5. Step 5: Solve for x
    x = 53,708,817.70/8,001.20
  6. Step 6: Final answer
    x = 6,712.60

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Half scale
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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.