Home / 12,146.91-16,761.55-8,961.95

Finding the Fourth Proportional to 12,146.91, 16,761.55 and 8,961.95

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Solution

The fourth proportional to 12,146.91, 16,761.55 and 8,961.95 is: 12,366.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146.91 : 16,761.55 = 8,961.95 : x
  2. Step 2: Convert to fraction form
    12,146.91/16,761.55 = 8,961.95/x
  3. Step 3: Cross multiply
    12,146.91x = 16,761.55 × 8,961.95
  4. Step 4: Simplify right side
    12,146.91x = 150,216,173.02
  5. Step 5: Solve for x
    x = 150,216,173.02/12,146.91
  6. Step 6: Final answer
    x = 12,366.62

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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.