Home / 12,869.52-17,760.28-7,204.24

Finding the Fourth Proportional to 12,869.52, 17,760.28 and 7,204.24

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Solution

The fourth proportional to 12,869.52, 17,760.28 and 7,204.24 is: 9,942.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.52 : 17,760.28 = 7,204.24 : x
  2. Step 2: Convert to fraction form
    12,869.52/17,760.28 = 7,204.24/x
  3. Step 3: Cross multiply
    12,869.52x = 17,760.28 × 7,204.24
  4. Step 4: Simplify right side
    12,869.52x = 127,949,319.59
  5. Step 5: Solve for x
    x = 127,949,319.59/12,869.52
  6. Step 6: Final answer
    x = 9,942.04

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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.