Home / 9,121.55-13,680.36-2,882.04

Finding the Fourth Proportional to 9,121.55, 13,680.36 and 2,882.04

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Solution

The fourth proportional to 9,121.55, 13,680.36 and 2,882.04 is: 4,322.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.55 : 13,680.36 = 2,882.04 : x
  2. Step 2: Convert to fraction form
    9,121.55/13,680.36 = 2,882.04/x
  3. Step 3: Cross multiply
    9,121.55x = 13,680.36 × 2,882.04
  4. Step 4: Simplify right side
    9,121.55x = 39,427,344.73
  5. Step 5: Solve for x
    x = 39,427,344.73/9,121.55
  6. Step 6: Final answer
    x = 4,322.44

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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.