Home / 18,043.68-27,065.34-13,687.86

Finding the Fourth Proportional to 18,043.68, 27,065.34 and 13,687.86

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Solution

The fourth proportional to 18,043.68, 27,065.34 and 13,687.86 is: 20,531.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,043.68 : 27,065.34 = 13,687.86 : x
  2. Step 2: Convert to fraction form
    18,043.68/27,065.34 = 13,687.86/x
  3. Step 3: Cross multiply
    18,043.68x = 27,065.34 × 13,687.86
  4. Step 4: Simplify right side
    18,043.68x = 370,466,584.77
  5. Step 5: Solve for x
    x = 370,466,584.77/18,043.68
  6. Step 6: Final answer
    x = 20,531.65

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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.