Home / 8,171.28-12,264.21-5,252.85

Finding the Fourth Proportional to 8,171.28, 12,264.21 and 5,252.85

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Solution

The fourth proportional to 8,171.28, 12,264.21 and 5,252.85 is: 7,883.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.28 : 12,264.21 = 5,252.85 : x
  2. Step 2: Convert to fraction form
    8,171.28/12,264.21 = 5,252.85/x
  3. Step 3: Cross multiply
    8,171.28x = 12,264.21 × 5,252.85
  4. Step 4: Simplify right side
    8,171.28x = 64,422,055.50
  5. Step 5: Solve for x
    x = 64,422,055.50/8,171.28
  6. Step 6: Final answer
    x = 7,883.96

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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.