Home / 8,175.56-11,278.62-6,283.76

Finding the Fourth Proportional to 8,175.56, 11,278.62 and 6,283.76

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Solution

The fourth proportional to 8,175.56, 11,278.62 and 6,283.76 is: 8,668.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,175.56 : 11,278.62 = 6,283.76 : x
  2. Step 2: Convert to fraction form
    8,175.56/11,278.62 = 6,283.76/x
  3. Step 3: Cross multiply
    8,175.56x = 11,278.62 × 6,283.76
  4. Step 4: Simplify right side
    8,175.56x = 70,872,141.21
  5. Step 5: Solve for x
    x = 70,872,141.21/8,175.56
  6. Step 6: Final answer
    x = 8,668.78

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Half scale
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Double scale
Find fourth proportional to 8,176.56, 11,280 and 6,284.76
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.