Home / 15,138.10-22,658.60-8,100.52

Finding the Fourth Proportional to 15,138.10, 22,658.60 and 8,100.52

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Solution

The fourth proportional to 15,138.10, 22,658.60 and 8,100.52 is: 12,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.10 : 22,658.60 = 8,100.52 : x
  2. Step 2: Convert to fraction form
    15,138.10/22,658.60 = 8,100.52/x
  3. Step 3: Cross multiply
    15,138.10x = 22,658.60 × 8,100.52
  4. Step 4: Simplify right side
    15,138.10x = 183,546,442.47
  5. Step 5: Solve for x
    x = 183,546,442.47/15,138.10
  6. Step 6: Final answer
    x = 12,124.80

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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.