Home / 18,489.47-27,738.86-5,341.75

Finding the Fourth Proportional to 18,489.47, 27,738.86 and 5,341.75

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Solution

The fourth proportional to 18,489.47, 27,738.86 and 5,341.75 is: 8,013.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489.47 : 27,738.86 = 5,341.75 : x
  2. Step 2: Convert to fraction form
    18,489.47/27,738.86 = 5,341.75/x
  3. Step 3: Cross multiply
    18,489.47x = 27,738.86 × 5,341.75
  4. Step 4: Simplify right side
    18,489.47x = 148,173,959.35
  5. Step 5: Solve for x
    x = 148,173,959.35/18,489.47
  6. Step 6: Final answer
    x = 8,013.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.