Home / 10,981.10-16,508.10-9,377.30

Finding the Fourth Proportional to 10,981.10, 16,508.10 and 9,377.30

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Solution

The fourth proportional to 10,981.10, 16,508.10 and 9,377.30 is: 14,097.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.10 : 16,508.10 = 9,377.30 : x
  2. Step 2: Convert to fraction form
    10,981.10/16,508.10 = 9,377.30/x
  3. Step 3: Cross multiply
    10,981.10x = 16,508.10 × 9,377.30
  4. Step 4: Simplify right side
    10,981.10x = 154,801,406.13
  5. Step 5: Solve for x
    x = 154,801,406.13/10,981.10
  6. Step 6: Final answer
    x = 14,097.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.