Home / 18,470.72-27,712.91-13,247.43

Finding the Fourth Proportional to 18,470.72, 27,712.91 and 13,247.43

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Solution

The fourth proportional to 18,470.72, 27,712.91 and 13,247.43 is: 19,876.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,470.72 : 27,712.91 = 13,247.43 : x
  2. Step 2: Convert to fraction form
    18,470.72/27,712.91 = 13,247.43/x
  3. Step 3: Cross multiply
    18,470.72x = 27,712.91 × 13,247.43
  4. Step 4: Simplify right side
    18,470.72x = 367,124,769.08
  5. Step 5: Solve for x
    x = 367,124,769.08/18,470.72
  6. Step 6: Final answer
    x = 19,876.05

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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.