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Finding the Fourth Proportional to 12,482.68, 17,221.68 and 8,008.86

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Solution

The fourth proportional to 12,482.68, 17,221.68 and 8,008.86 is: 11,049.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.68 : 17,221.68 = 8,008.86 : x
  2. Step 2: Convert to fraction form
    12,482.68/17,221.68 = 8,008.86/x
  3. Step 3: Cross multiply
    12,482.68x = 17,221.68 × 8,008.86
  4. Step 4: Simplify right side
    12,482.68x = 137,926,024.08
  5. Step 5: Solve for x
    x = 137,926,024.08/12,482.68
  6. Step 6: Final answer
    x = 11,049.39

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Double scale
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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.