Home / 12,502.20-18,737.10-5,100.60

Finding the Fourth Proportional to 12,502.20, 18,737.10 and 5,100.60

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Solution

The fourth proportional to 12,502.20, 18,737.10 and 5,100.60 is: 7,644.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,502.20 : 18,737.10 = 5,100.60 : x
  2. Step 2: Convert to fraction form
    12,502.20/18,737.10 = 5,100.60/x
  3. Step 3: Cross multiply
    12,502.20x = 18,737.10 × 5,100.60
  4. Step 4: Simplify right side
    12,502.20x = 95,570,452.26
  5. Step 5: Solve for x
    x = 95,570,452.26/12,502.20
  6. Step 6: Final answer
    x = 7,644.29

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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.