Home / 10,929.39-15,082.56-6,213.96

Finding the Fourth Proportional to 10,929.39, 15,082.56 and 6,213.96

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Solution

The fourth proportional to 10,929.39, 15,082.56 and 6,213.96 is: 8,575.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.39 : 15,082.56 = 6,213.96 : x
  2. Step 2: Convert to fraction form
    10,929.39/15,082.56 = 6,213.96/x
  3. Step 3: Cross multiply
    10,929.39x = 15,082.56 × 6,213.96
  4. Step 4: Simplify right side
    10,929.39x = 93,722,424.54
  5. Step 5: Solve for x
    x = 93,722,424.54/10,929.39
  6. Step 6: Final answer
    x = 8,575.27

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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.