Home / 9,122.17-12,587.85-5,344.84

Finding the Fourth Proportional to 9,122.17, 12,587.85 and 5,344.84

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Solution

The fourth proportional to 9,122.17, 12,587.85 and 5,344.84 is: 7,375.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.17 : 12,587.85 = 5,344.84 : x
  2. Step 2: Convert to fraction form
    9,122.17/12,587.85 = 5,344.84/x
  3. Step 3: Cross multiply
    9,122.17x = 12,587.85 × 5,344.84
  4. Step 4: Simplify right side
    9,122.17x = 67,280,044.19
  5. Step 5: Solve for x
    x = 67,280,044.19/9,122.17
  6. Step 6: Final answer
    x = 7,375.44

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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.