Home / 9,125.27-12,579.95-6,471.71

Finding the Fourth Proportional to 9,125.27, 12,579.95 and 6,471.71

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Solution

The fourth proportional to 9,125.27, 12,579.95 and 6,471.71 is: 8,921.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.27 : 12,579.95 = 6,471.71 : x
  2. Step 2: Convert to fraction form
    9,125.27/12,579.95 = 6,471.71/x
  3. Step 3: Cross multiply
    9,125.27x = 12,579.95 × 6,471.71
  4. Step 4: Simplify right side
    9,125.27x = 81,413,755.86
  5. Step 5: Solve for x
    x = 81,413,755.86/9,125.27
  6. Step 6: Final answer
    x = 8,921.79

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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.