Home / 10,881.92-16,330.17-6,989.06

Finding the Fourth Proportional to 10,881.92, 16,330.17 and 6,989.06

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Solution

The fourth proportional to 10,881.92, 16,330.17 and 6,989.06 is: 10,488.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881.92 : 16,330.17 = 6,989.06 : x
  2. Step 2: Convert to fraction form
    10,881.92/16,330.17 = 6,989.06/x
  3. Step 3: Cross multiply
    10,881.92x = 16,330.17 × 6,989.06
  4. Step 4: Simplify right side
    10,881.92x = 114,132,456.29
  5. Step 5: Solve for x
    x = 114,132,456.29/10,881.92
  6. Step 6: Final answer
    x = 10,488.27

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1.5x scale

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.