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Finding the Fourth Proportional to 8,650, 12,984.24 and 3,722.08

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Solution

The fourth proportional to 8,650, 12,984.24 and 3,722.08 is: 5,587.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650 : 12,984.24 = 3,722.08 : x
  2. Step 2: Convert to fraction form
    8,650/12,984.24 = 3,722.08/x
  3. Step 3: Cross multiply
    8,650x = 12,984.24 × 3,722.08
  4. Step 4: Simplify right side
    8,650x = 48,328,380.02
  5. Step 5: Solve for x
    x = 48,328,380.02/8,650
  6. Step 6: Final answer
    x = 5,587.10

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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.