Home / 18,153.52-27,225.28-12,872.93

Finding the Fourth Proportional to 18,153.52, 27,225.28 and 12,872.93

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Solution

The fourth proportional to 18,153.52, 27,225.28 and 12,872.93 is: 19,305.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.52 : 27,225.28 = 12,872.93 : x
  2. Step 2: Convert to fraction form
    18,153.52/27,225.28 = 12,872.93/x
  3. Step 3: Cross multiply
    18,153.52x = 27,225.28 × 12,872.93
  4. Step 4: Simplify right side
    18,153.52x = 350,469,003.64
  5. Step 5: Solve for x
    x = 350,469,003.64/18,153.52
  6. Step 6: Final answer
    x = 19,305.85

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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.