Home / 9,006.28-12,423.48-5,418.74

Finding the Fourth Proportional to 9,006.28, 12,423.48 and 5,418.74

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Solution

The fourth proportional to 9,006.28, 12,423.48 and 5,418.74 is: 7,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,006.28 : 12,423.48 = 5,418.74 : x
  2. Step 2: Convert to fraction form
    9,006.28/12,423.48 = 5,418.74/x
  3. Step 3: Cross multiply
    9,006.28x = 12,423.48 × 5,418.74
  4. Step 4: Simplify right side
    9,006.28x = 67,319,608.02
  5. Step 5: Solve for x
    x = 67,319,608.02/9,006.28
  6. Step 6: Final answer
    x = 7,474.74

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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.