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Finding the Fourth Proportional to 8,404.52, 12,609 and 7,486.38

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Solution

The fourth proportional to 8,404.52, 12,609 and 7,486.38 is: 11,231.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,404.52 : 12,609 = 7,486.38 : x
  2. Step 2: Convert to fraction form
    8,404.52/12,609 = 7,486.38/x
  3. Step 3: Cross multiply
    8,404.52x = 12,609 × 7,486.38
  4. Step 4: Simplify right side
    8,404.52x = 94,395,765.42
  5. Step 5: Solve for x
    x = 94,395,765.42/8,404.52
  6. Step 6: Final answer
    x = 11,231.55

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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.