Home / 15,454.20-23,132.70-12,149.40

Finding the Fourth Proportional to 15,454.20, 23,132.70 and 12,149.40

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Solution

The fourth proportional to 15,454.20, 23,132.70 and 12,149.40 is: 18,185.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.20 : 23,132.70 = 12,149.40 : x
  2. Step 2: Convert to fraction form
    15,454.20/23,132.70 = 12,149.40/x
  3. Step 3: Cross multiply
    15,454.20x = 23,132.70 × 12,149.40
  4. Step 4: Simplify right side
    15,454.20x = 281,048,425.38
  5. Step 5: Solve for x
    x = 281,048,425.38/15,454.20
  6. Step 6: Final answer
    x = 18,185.89

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1.5x scale

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.