Home / 9,279.91-12,789.10-6,591.25

Finding the Fourth Proportional to 9,279.91, 12,789.10 and 6,591.25

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Solution

The fourth proportional to 9,279.91, 12,789.10 and 6,591.25 is: 9,083.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.91 : 12,789.10 = 6,591.25 : x
  2. Step 2: Convert to fraction form
    9,279.91/12,789.10 = 6,591.25/x
  3. Step 3: Cross multiply
    9,279.91x = 12,789.10 × 6,591.25
  4. Step 4: Simplify right side
    9,279.91x = 84,296,091.43
  5. Step 5: Solve for x
    x = 84,296,091.43/9,279.91
  6. Step 6: Final answer
    x = 9,083.72

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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.