Home / 10,930.18-15,084.92-6,215.16

Finding the Fourth Proportional to 10,930.18, 15,084.92 and 6,215.16

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Solution

The fourth proportional to 10,930.18, 15,084.92 and 6,215.16 is: 8,577.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.18 : 15,084.92 = 6,215.16 : x
  2. Step 2: Convert to fraction form
    10,930.18/15,084.92 = 6,215.16/x
  3. Step 3: Cross multiply
    10,930.18x = 15,084.92 × 6,215.16
  4. Step 4: Simplify right side
    10,930.18x = 93,755,191.39
  5. Step 5: Solve for x
    x = 93,755,191.39/10,930.18
  6. Step 6: Final answer
    x = 8,577.64

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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.