Home / 10,930.08-16,395.12-8,728.52

Finding the Fourth Proportional to 10,930.08, 16,395.12 and 8,728.52

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Solution

The fourth proportional to 10,930.08, 16,395.12 and 8,728.52 is: 13,092.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.08 : 16,395.12 = 8,728.52 : x
  2. Step 2: Convert to fraction form
    10,930.08/16,395.12 = 8,728.52/x
  3. Step 3: Cross multiply
    10,930.08x = 16,395.12 × 8,728.52
  4. Step 4: Simplify right side
    10,930.08x = 143,105,132.82
  5. Step 5: Solve for x
    x = 143,105,132.82/10,930.08
  6. Step 6: Final answer
    x = 13,092.78

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.