Home / 8,081.48-12,122.10-3,154.58

Finding the Fourth Proportional to 8,081.48, 12,122.10 and 3,154.58

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Solution

The fourth proportional to 8,081.48, 12,122.10 and 3,154.58 is: 4,731.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.48 : 12,122.10 = 3,154.58 : x
  2. Step 2: Convert to fraction form
    8,081.48/12,122.10 = 3,154.58/x
  3. Step 3: Cross multiply
    8,081.48x = 12,122.10 × 3,154.58
  4. Step 4: Simplify right side
    8,081.48x = 38,240,073.61
  5. Step 5: Solve for x
    x = 38,240,073.61/8,081.48
  6. Step 6: Final answer
    x = 4,731.82

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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.