Home / 15,138.60-22,711.54-4,750.35

Finding the Fourth Proportional to 15,138.60, 22,711.54 and 4,750.35

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Solution

The fourth proportional to 15,138.60, 22,711.54 and 4,750.35 is: 7,126.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.60 : 22,711.54 = 4,750.35 : x
  2. Step 2: Convert to fraction form
    15,138.60/22,711.54 = 4,750.35/x
  3. Step 3: Cross multiply
    15,138.60x = 22,711.54 × 4,750.35
  4. Step 4: Simplify right side
    15,138.60x = 107,887,650.48
  5. Step 5: Solve for x
    x = 107,887,650.48/15,138.60
  6. Step 6: Final answer
    x = 7,126.66

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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.