Home / 13,008.20-17,951.34-7,039.92

Finding the Fourth Proportional to 13,008.20, 17,951.34 and 7,039.92

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Solution

The fourth proportional to 13,008.20, 17,951.34 and 7,039.92 is: 9,715.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008.20 : 17,951.34 = 7,039.92 : x
  2. Step 2: Convert to fraction form
    13,008.20/17,951.34 = 7,039.92/x
  3. Step 3: Cross multiply
    13,008.20x = 17,951.34 × 7,039.92
  4. Step 4: Simplify right side
    13,008.20x = 126,375,997.49
  5. Step 5: Solve for x
    x = 126,375,997.49/13,008.20
  6. Step 6: Final answer
    x = 9,715.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.