Home / 9,207.13-12,702.78-5,620.79

Finding the Fourth Proportional to 9,207.13, 12,702.78 and 5,620.79

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Solution

The fourth proportional to 9,207.13, 12,702.78 and 5,620.79 is: 7,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,207.13 : 12,702.78 = 5,620.79 : x
  2. Step 2: Convert to fraction form
    9,207.13/12,702.78 = 5,620.79/x
  3. Step 3: Cross multiply
    9,207.13x = 12,702.78 × 5,620.79
  4. Step 4: Simplify right side
    9,207.13x = 71,399,658.80
  5. Step 5: Solve for x
    x = 71,399,658.80/9,207.13
  6. Step 6: Final answer
    x = 7,754.82

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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.