Home / 18,730.56-25,839.45-11,554.47

Finding the Fourth Proportional to 18,730.56, 25,839.45 and 11,554.47

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Solution

The fourth proportional to 18,730.56, 25,839.45 and 11,554.47 is: 15,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730.56 : 25,839.45 = 11,554.47 : x
  2. Step 2: Convert to fraction form
    18,730.56/25,839.45 = 11,554.47/x
  3. Step 3: Cross multiply
    18,730.56x = 25,839.45 × 11,554.47
  4. Step 4: Simplify right side
    18,730.56x = 298,561,149.84
  5. Step 5: Solve for x
    x = 298,561,149.84/18,730.56
  6. Step 6: Final answer
    x = 15,939.79

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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.