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Finding the Fourth Proportional to 10,613.04, 15,890.40 and 8,008.08

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Solution

The fourth proportional to 10,613.04, 15,890.40 and 8,008.08 is: 11,990.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.04 : 15,890.40 = 8,008.08 : x
  2. Step 2: Convert to fraction form
    10,613.04/15,890.40 = 8,008.08/x
  3. Step 3: Cross multiply
    10,613.04x = 15,890.40 × 8,008.08
  4. Step 4: Simplify right side
    10,613.04x = 127,251,594.43
  5. Step 5: Solve for x
    x = 127,251,594.43/10,613.04
  6. Step 6: Final answer
    x = 11,990.12

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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.