Home / 8,394.28-12,591.16-2,154.04

Finding the Fourth Proportional to 8,394.28, 12,591.16 and 2,154.04

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Solution

The fourth proportional to 8,394.28, 12,591.16 and 2,154.04 is: 3,230.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394.28 : 12,591.16 = 2,154.04 : x
  2. Step 2: Convert to fraction form
    8,394.28/12,591.16 = 2,154.04/x
  3. Step 3: Cross multiply
    8,394.28x = 12,591.16 × 2,154.04
  4. Step 4: Simplify right side
    8,394.28x = 27,121,825.42
  5. Step 5: Solve for x
    x = 27,121,825.42/8,394.28
  6. Step 6: Final answer
    x = 3,230.99

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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.