Home / 18,747.63-25,872.53-10,789.92

Finding the Fourth Proportional to 18,747.63, 25,872.53 and 10,789.92

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Solution

The fourth proportional to 18,747.63, 25,872.53 and 10,789.92 is: 14,890.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.63 : 25,872.53 = 10,789.92 : x
  2. Step 2: Convert to fraction form
    18,747.63/25,872.53 = 10,789.92/x
  3. Step 3: Cross multiply
    18,747.63x = 25,872.53 × 10,789.92
  4. Step 4: Simplify right side
    18,747.63x = 279,162,474.95
  5. Step 5: Solve for x
    x = 279,162,474.95/18,747.63
  6. Step 6: Final answer
    x = 14,890.55

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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.