Home / 9,143.28-12,616.97-5,366.05

Finding the Fourth Proportional to 9,143.28, 12,616.97 and 5,366.05

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Solution

The fourth proportional to 9,143.28, 12,616.97 and 5,366.05 is: 7,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.28 : 12,616.97 = 5,366.05 : x
  2. Step 2: Convert to fraction form
    9,143.28/12,616.97 = 5,366.05/x
  3. Step 3: Cross multiply
    9,143.28x = 12,616.97 × 5,366.05
  4. Step 4: Simplify right side
    9,143.28x = 67,703,233.50
  5. Step 5: Solve for x
    x = 67,703,233.50/9,143.28
  6. Step 6: Final answer
    x = 7,404.70

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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.