Home / 9,006.28-12,423.48-5,418.76

Finding the Fourth Proportional to 9,006.28, 12,423.48 and 5,418.76

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Solution

The fourth proportional to 9,006.28, 12,423.48 and 5,418.76 is: 7,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,006.28 : 12,423.48 = 5,418.76 : x
  2. Step 2: Convert to fraction form
    9,006.28/12,423.48 = 5,418.76/x
  3. Step 3: Cross multiply
    9,006.28x = 12,423.48 × 5,418.76
  4. Step 4: Simplify right side
    9,006.28x = 67,319,856.48
  5. Step 5: Solve for x
    x = 67,319,856.48/9,006.28
  6. Step 6: Final answer
    x = 7,474.77

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Half scale
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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.