Home / 10,930.28-15,081.19-6,217.16

Finding the Fourth Proportional to 10,930.28, 15,081.19 and 6,217.16

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Solution

The fourth proportional to 10,930.28, 15,081.19 and 6,217.16 is: 8,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.28 : 15,081.19 = 6,217.16 : x
  2. Step 2: Convert to fraction form
    10,930.28/15,081.19 = 6,217.16/x
  3. Step 3: Cross multiply
    10,930.28x = 15,081.19 × 6,217.16
  4. Step 4: Simplify right side
    10,930.28x = 93,762,080.27
  5. Step 5: Solve for x
    x = 93,762,080.27/10,930.28
  6. Step 6: Final answer
    x = 8,578.20

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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.