Home / 9,081.80-12,529.62-5,939.78

Finding the Fourth Proportional to 9,081.80, 12,529.62 and 5,939.78

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Solution

The fourth proportional to 9,081.80, 12,529.62 and 5,939.78 is: 8,194.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,081.80 : 12,529.62 = 5,939.78 : x
  2. Step 2: Convert to fraction form
    9,081.80/12,529.62 = 5,939.78/x
  3. Step 3: Cross multiply
    9,081.80x = 12,529.62 × 5,939.78
  4. Step 4: Simplify right side
    9,081.80x = 74,423,186.28
  5. Step 5: Solve for x
    x = 74,423,186.28/9,081.80
  6. Step 6: Final answer
    x = 8,194.76

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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.