Home / 13,008.20-17,951.36-7,039.87

Finding the Fourth Proportional to 13,008.20, 17,951.36 and 7,039.87

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Solution

The fourth proportional to 13,008.20, 17,951.36 and 7,039.87 is: 9,715.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008.20 : 17,951.36 = 7,039.87 : x
  2. Step 2: Convert to fraction form
    13,008.20/17,951.36 = 7,039.87/x
  3. Step 3: Cross multiply
    13,008.20x = 17,951.36 × 7,039.87
  4. Step 4: Simplify right side
    13,008.20x = 126,375,213.44
  5. Step 5: Solve for x
    x = 126,375,213.44/13,008.20
  6. Step 6: Final answer
    x = 9,715.04

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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.