Home / 12,429.27-18,643.92-5,028.66

Finding the Fourth Proportional to 12,429.27, 18,643.92 and 5,028.66

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Solution

The fourth proportional to 12,429.27, 18,643.92 and 5,028.66 is: 7,543.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.27 : 18,643.92 = 5,028.66 : x
  2. Step 2: Convert to fraction form
    12,429.27/18,643.92 = 5,028.66/x
  3. Step 3: Cross multiply
    12,429.27x = 18,643.92 × 5,028.66
  4. Step 4: Simplify right side
    12,429.27x = 93,753,934.75
  5. Step 5: Solve for x
    x = 93,753,934.75/12,429.27
  6. Step 6: Final answer
    x = 7,543.00

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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.