Home / 12,449.76-18,668.16-5,874.18

Finding the Fourth Proportional to 12,449.76, 18,668.16 and 5,874.18

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Solution

The fourth proportional to 12,449.76, 18,668.16 and 5,874.18 is: 8,808.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.76 : 18,668.16 = 5,874.18 : x
  2. Step 2: Convert to fraction form
    12,449.76/18,668.16 = 5,874.18/x
  3. Step 3: Cross multiply
    12,449.76x = 18,668.16 × 5,874.18
  4. Step 4: Simplify right side
    12,449.76x = 109,660,132.11
  5. Step 5: Solve for x
    x = 109,660,132.11/12,449.76
  6. Step 6: Final answer
    x = 8,808.21

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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.