Home / 10,929.80-15,082.54-6,149.86

Finding the Fourth Proportional to 10,929.80, 15,082.54 and 6,149.86

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Solution

The fourth proportional to 10,929.80, 15,082.54 and 6,149.86 is: 8,486.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.80 : 15,082.54 = 6,149.86 : x
  2. Step 2: Convert to fraction form
    10,929.80/15,082.54 = 6,149.86/x
  3. Step 3: Cross multiply
    10,929.80x = 15,082.54 × 6,149.86
  4. Step 4: Simplify right side
    10,929.80x = 92,755,456.36
  5. Step 5: Solve for x
    x = 92,755,456.36/10,929.80
  6. Step 6: Final answer
    x = 8,486.47

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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.