Home / 18,723.93-25,837.97-11,178.78

Finding the Fourth Proportional to 18,723.93, 25,837.97 and 11,178.78

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Solution

The fourth proportional to 18,723.93, 25,837.97 and 11,178.78 is: 15,426.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.93 : 25,837.97 = 11,178.78 : x
  2. Step 2: Convert to fraction form
    18,723.93/25,837.97 = 11,178.78/x
  3. Step 3: Cross multiply
    18,723.93x = 25,837.97 × 11,178.78
  4. Step 4: Simplify right side
    18,723.93x = 288,836,926.38
  5. Step 5: Solve for x
    x = 288,836,926.38/18,723.93
  6. Step 6: Final answer
    x = 15,426.08

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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.