Home / 15,138.80-22,711.84-4,750.55

Finding the Fourth Proportional to 15,138.80, 22,711.84 and 4,750.55

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Solution

The fourth proportional to 15,138.80, 22,711.84 and 4,750.55 is: 7,126.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.80 : 22,711.84 = 4,750.55 : x
  2. Step 2: Convert to fraction form
    15,138.80/22,711.84 = 4,750.55/x
  3. Step 3: Cross multiply
    15,138.80x = 22,711.84 × 4,750.55
  4. Step 4: Simplify right side
    15,138.80x = 107,893,731.51
  5. Step 5: Solve for x
    x = 107,893,731.51/15,138.80
  6. Step 6: Final answer
    x = 7,126.97

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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.