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Finding the Fourth Proportional to 9,998.92, 15,002.70 and 5,609.80

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Solution

The fourth proportional to 9,998.92, 15,002.70 and 5,609.80 is: 8,417.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998.92 : 15,002.70 = 5,609.80 : x
  2. Step 2: Convert to fraction form
    9,998.92/15,002.70 = 5,609.80/x
  3. Step 3: Cross multiply
    9,998.92x = 15,002.70 × 5,609.80
  4. Step 4: Simplify right side
    9,998.92x = 84,162,146.46
  5. Step 5: Solve for x
    x = 84,162,146.46/9,998.92
  6. Step 6: Final answer
    x = 8,417.12

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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.