Home / 18,643.05-25,726.89-10,144.97

Finding the Fourth Proportional to 18,643.05, 25,726.89 and 10,144.97

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Solution

The fourth proportional to 18,643.05, 25,726.89 and 10,144.97 is: 13,999.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,643.05 : 25,726.89 = 10,144.97 : x
  2. Step 2: Convert to fraction form
    18,643.05/25,726.89 = 10,144.97/x
  3. Step 3: Cross multiply
    18,643.05x = 25,726.89 × 10,144.97
  4. Step 4: Simplify right side
    18,643.05x = 260,998,527.24
  5. Step 5: Solve for x
    x = 260,998,527.24/18,643.05
  6. Step 6: Final answer
    x = 13,999.78

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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.