Home / 15,076.46-20,791.90-9,411.73

Finding the Fourth Proportional to 15,076.46, 20,791.90 and 9,411.73

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Solution

The fourth proportional to 15,076.46, 20,791.90 and 9,411.73 is: 12,979.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,076.46 : 20,791.90 = 9,411.73 : x
  2. Step 2: Convert to fraction form
    15,076.46/20,791.90 = 9,411.73/x
  3. Step 3: Cross multiply
    15,076.46x = 20,791.90 × 9,411.73
  4. Step 4: Simplify right side
    15,076.46x = 195,687,772.52
  5. Step 5: Solve for x
    x = 195,687,772.52/15,076.46
  6. Step 6: Final answer
    x = 12,979.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.