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Finding the Fourth Proportional to 8,339.12, 12,523.01 and 7,404.17

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Solution

The fourth proportional to 8,339.12, 12,523.01 and 7,404.17 is: 11,118.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.12 : 12,523.01 = 7,404.17 : x
  2. Step 2: Convert to fraction form
    8,339.12/12,523.01 = 7,404.17/x
  3. Step 3: Cross multiply
    8,339.12x = 12,523.01 × 7,404.17
  4. Step 4: Simplify right side
    8,339.12x = 92,722,457.93
  5. Step 5: Solve for x
    x = 92,722,457.93/8,339.12
  6. Step 6: Final answer
    x = 11,118.97

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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.