Home / 10,929.56-15,082.80-6,213.86

Finding the Fourth Proportional to 10,929.56, 15,082.80 and 6,213.86

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Solution

The fourth proportional to 10,929.56, 15,082.80 and 6,213.86 is: 8,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.56 : 15,082.80 = 6,213.86 : x
  2. Step 2: Convert to fraction form
    10,929.56/15,082.80 = 6,213.86/x
  3. Step 3: Cross multiply
    10,929.56x = 15,082.80 × 6,213.86
  4. Step 4: Simplify right side
    10,929.56x = 93,722,407.61
  5. Step 5: Solve for x
    x = 93,722,407.61/10,929.56
  6. Step 6: Final answer
    x = 8,575.13

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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.