Home / 10,122.50-15,177.17-4,197.76

Finding the Fourth Proportional to 10,122.50, 15,177.17 and 4,197.76

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Solution

The fourth proportional to 10,122.50, 15,177.17 and 4,197.76 is: 6,293.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.50 : 15,177.17 = 4,197.76 : x
  2. Step 2: Convert to fraction form
    10,122.50/15,177.17 = 4,197.76/x
  3. Step 3: Cross multiply
    10,122.50x = 15,177.17 × 4,197.76
  4. Step 4: Simplify right side
    10,122.50x = 63,710,089.69
  5. Step 5: Solve for x
    x = 63,710,089.69/10,122.50
  6. Step 6: Final answer
    x = 6,293.91

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1.5x scale

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.