Home / 10,930.98-15,084.31-6,456.17

Finding the Fourth Proportional to 10,930.98, 15,084.31 and 6,456.17

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Solution

The fourth proportional to 10,930.98, 15,084.31 and 6,456.17 is: 8,909.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.98 : 15,084.31 = 6,456.17 : x
  2. Step 2: Convert to fraction form
    10,930.98/15,084.31 = 6,456.17/x
  3. Step 3: Cross multiply
    10,930.98x = 15,084.31 × 6,456.17
  4. Step 4: Simplify right side
    10,930.98x = 97,386,869.69
  5. Step 5: Solve for x
    x = 97,386,869.69/10,930.98
  6. Step 6: Final answer
    x = 8,909.25

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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.