Home / 15,138.98-22,712.10-4,750.73

Finding the Fourth Proportional to 15,138.98, 22,712.10 and 4,750.73

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Solution

The fourth proportional to 15,138.98, 22,712.10 and 4,750.73 is: 7,127.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.98 : 22,712.10 = 4,750.73 : x
  2. Step 2: Convert to fraction form
    15,138.98/22,712.10 = 4,750.73/x
  3. Step 3: Cross multiply
    15,138.98x = 22,712.10 × 4,750.73
  4. Step 4: Simplify right side
    15,138.98x = 107,898,941.27
  5. Step 5: Solve for x
    x = 107,898,941.27/15,138.98
  6. Step 6: Final answer
    x = 7,127.23

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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.