Home / 18,839.15-25,999.62-10,342.71

Finding the Fourth Proportional to 18,839.15, 25,999.62 and 10,342.71

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Solution

The fourth proportional to 18,839.15, 25,999.62 and 10,342.71 is: 14,273.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.15 : 25,999.62 = 10,342.71 : x
  2. Step 2: Convert to fraction form
    18,839.15/25,999.62 = 10,342.71/x
  3. Step 3: Cross multiply
    18,839.15x = 25,999.62 × 10,342.71
  4. Step 4: Simplify right side
    18,839.15x = 268,906,490.99
  5. Step 5: Solve for x
    x = 268,906,490.99/18,839.15
  6. Step 6: Final answer
    x = 14,273.81

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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.