Home / 14,239.28-19,651.20-7,951.88

Finding the Fourth Proportional to 14,239.28, 19,651.20 and 7,951.88

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Solution

The fourth proportional to 14,239.28, 19,651.20 and 7,951.88 is: 10,974.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.28 : 19,651.20 = 7,951.88 : x
  2. Step 2: Convert to fraction form
    14,239.28/19,651.20 = 7,951.88/x
  3. Step 3: Cross multiply
    14,239.28x = 19,651.20 × 7,951.88
  4. Step 4: Simplify right side
    14,239.28x = 156,263,984.26
  5. Step 5: Solve for x
    x = 156,263,984.26/14,239.28
  6. Step 6: Final answer
    x = 10,974.15

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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.