Home / 15,159.12-22,766.91-12,391.68

Finding the Fourth Proportional to 15,159.12, 22,766.91 and 12,391.68

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Solution

The fourth proportional to 15,159.12, 22,766.91 and 12,391.68 is: 18,610.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,159.12 : 22,766.91 = 12,391.68 : x
  2. Step 2: Convert to fraction form
    15,159.12/22,766.91 = 12,391.68/x
  3. Step 3: Cross multiply
    15,159.12x = 22,766.91 × 12,391.68
  4. Step 4: Simplify right side
    15,159.12x = 282,120,263.31
  5. Step 5: Solve for x
    x = 282,120,263.31/15,159.12
  6. Step 6: Final answer
    x = 18,610.60

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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.