Home / 9,143.29-12,622.13-5,787.73

Finding the Fourth Proportional to 9,143.29, 12,622.13 and 5,787.73

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Solution

The fourth proportional to 9,143.29, 12,622.13 and 5,787.73 is: 7,989.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.29 : 12,622.13 = 5,787.73 : x
  2. Step 2: Convert to fraction form
    9,143.29/12,622.13 = 5,787.73/x
  3. Step 3: Cross multiply
    9,143.29x = 12,622.13 × 5,787.73
  4. Step 4: Simplify right side
    9,143.29x = 73,053,480.46
  5. Step 5: Solve for x
    x = 73,053,480.46/9,143.29
  6. Step 6: Final answer
    x = 7,989.85

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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.