Home / 10,127.38-15,200.80-4,936.90

Finding the Fourth Proportional to 10,127.38, 15,200.80 and 4,936.90

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Solution

The fourth proportional to 10,127.38, 15,200.80 and 4,936.90 is: 7,410.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.38 : 15,200.80 = 4,936.90 : x
  2. Step 2: Convert to fraction form
    10,127.38/15,200.80 = 4,936.90/x
  3. Step 3: Cross multiply
    10,127.38x = 15,200.80 × 4,936.90
  4. Step 4: Simplify right side
    10,127.38x = 75,044,829.52
  5. Step 5: Solve for x
    x = 75,044,829.52/10,127.38
  6. Step 6: Final answer
    x = 7,410.09

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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.