Home / 15,138.88-22,711.96-4,750.63

Finding the Fourth Proportional to 15,138.88, 22,711.96 and 4,750.63

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Solution

The fourth proportional to 15,138.88, 22,711.96 and 4,750.63 is: 7,127.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.88 : 22,711.96 = 4,750.63 : x
  2. Step 2: Convert to fraction form
    15,138.88/22,711.96 = 4,750.63/x
  3. Step 3: Cross multiply
    15,138.88x = 22,711.96 × 4,750.63
  4. Step 4: Simplify right side
    15,138.88x = 107,896,195.45
  5. Step 5: Solve for x
    x = 107,896,195.45/15,138.88
  6. Step 6: Final answer
    x = 7,127.09

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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.