Home / 16,101.24-22,260.78-12,142.68

Finding the Fourth Proportional to 16,101.24, 22,260.78 and 12,142.68

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Solution

The fourth proportional to 16,101.24, 22,260.78 and 12,142.68 is: 16,787.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,101.24 : 22,260.78 = 12,142.68 : x
  2. Step 2: Convert to fraction form
    16,101.24/22,260.78 = 12,142.68/x
  3. Step 3: Cross multiply
    16,101.24x = 22,260.78 × 12,142.68
  4. Step 4: Simplify right side
    16,101.24x = 270,305,528.09
  5. Step 5: Solve for x
    x = 270,305,528.09/16,101.24
  6. Step 6: Final answer
    x = 16,787.87

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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.