Home / 11,819.52-17,729.28-7,426.08

Finding the Fourth Proportional to 11,819.52, 17,729.28 and 7,426.08

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Solution

The fourth proportional to 11,819.52, 17,729.28 and 7,426.08 is: 11,139.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.52 : 17,729.28 = 7,426.08 : x
  2. Step 2: Convert to fraction form
    11,819.52/17,729.28 = 7,426.08/x
  3. Step 3: Cross multiply
    11,819.52x = 17,729.28 × 7,426.08
  4. Step 4: Simplify right side
    11,819.52x = 131,659,051.62
  5. Step 5: Solve for x
    x = 131,659,051.62/11,819.52
  6. Step 6: Final answer
    x = 11,139.12

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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.