Home / 8,427.60-12,625.61-7,049.79

Finding the Fourth Proportional to 8,427.60, 12,625.61 and 7,049.79

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Solution

The fourth proportional to 8,427.60, 12,625.61 and 7,049.79 is: 10,561.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.60 : 12,625.61 = 7,049.79 : x
  2. Step 2: Convert to fraction form
    8,427.60/12,625.61 = 7,049.79/x
  3. Step 3: Cross multiply
    8,427.60x = 12,625.61 × 7,049.79
  4. Step 4: Simplify right side
    8,427.60x = 89,007,863.87
  5. Step 5: Solve for x
    x = 89,007,863.87/8,427.60
  6. Step 6: Final answer
    x = 10,561.47

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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.