Home / 12,440.16-18,651.12-5,862.66

Finding the Fourth Proportional to 12,440.16, 18,651.12 and 5,862.66

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Solution

The fourth proportional to 12,440.16, 18,651.12 and 5,862.66 is: 8,789.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.16 : 18,651.12 = 5,862.66 : x
  2. Step 2: Convert to fraction form
    12,440.16/18,651.12 = 5,862.66/x
  3. Step 3: Cross multiply
    12,440.16x = 18,651.12 × 5,862.66
  4. Step 4: Simplify right side
    12,440.16x = 109,345,175.18
  5. Step 5: Solve for x
    x = 109,345,175.18/12,440.16
  6. Step 6: Final answer
    x = 8,789.69

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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.