Home / 18,636.20-25,717.74-13,877.43

Finding the Fourth Proportional to 18,636.20, 25,717.74 and 13,877.43

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Solution

The fourth proportional to 18,636.20, 25,717.74 and 13,877.43 is: 19,150.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,636.20 : 25,717.74 = 13,877.43 : x
  2. Step 2: Convert to fraction form
    18,636.20/25,717.74 = 13,877.43/x
  3. Step 3: Cross multiply
    18,636.20x = 25,717.74 × 13,877.43
  4. Step 4: Simplify right side
    18,636.20x = 356,896,136.61
  5. Step 5: Solve for x
    x = 356,896,136.61/18,636.20
  6. Step 6: Final answer
    x = 19,150.69

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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.