Home / 11,337.12-17,007.28-4,759.20

Finding the Fourth Proportional to 11,337.12, 17,007.28 and 4,759.20

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Solution

The fourth proportional to 11,337.12, 17,007.28 and 4,759.20 is: 7,139.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,337.12 : 17,007.28 = 4,759.20 : x
  2. Step 2: Convert to fraction form
    11,337.12/17,007.28 = 4,759.20/x
  3. Step 3: Cross multiply
    11,337.12x = 17,007.28 × 4,759.20
  4. Step 4: Simplify right side
    11,337.12x = 80,941,046.98
  5. Step 5: Solve for x
    x = 80,941,046.98/11,337.12
  6. Step 6: Final answer
    x = 7,139.47

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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.