Home / 9,122.67-13,689.90-3,279.15

Finding the Fourth Proportional to 9,122.67, 13,689.90 and 3,279.15

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Solution

The fourth proportional to 9,122.67, 13,689.90 and 3,279.15 is: 4,920.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.67 : 13,689.90 = 3,279.15 : x
  2. Step 2: Convert to fraction form
    9,122.67/13,689.90 = 3,279.15/x
  3. Step 3: Cross multiply
    9,122.67x = 13,689.90 × 3,279.15
  4. Step 4: Simplify right side
    9,122.67x = 44,891,235.59
  5. Step 5: Solve for x
    x = 44,891,235.59/9,122.67
  6. Step 6: Final answer
    x = 4,920.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.