Home / 16,286.40-22,468.80-10,972.80

Finding the Fourth Proportional to 16,286.40, 22,468.80 and 10,972.80

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Solution

The fourth proportional to 16,286.40, 22,468.80 and 10,972.80 is: 15,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,286.40 : 22,468.80 = 10,972.80 : x
  2. Step 2: Convert to fraction form
    16,286.40/22,468.80 = 10,972.80/x
  3. Step 3: Cross multiply
    16,286.40x = 22,468.80 × 10,972.80
  4. Step 4: Simplify right side
    16,286.40x = 246,545,648.64
  5. Step 5: Solve for x
    x = 246,545,648.64/16,286.40
  6. Step 6: Final answer
    x = 15,138.13

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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.