Home / 18,954.08-26,167.68-12,589.28

Finding the Fourth Proportional to 18,954.08, 26,167.68 and 12,589.28

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Solution

The fourth proportional to 18,954.08, 26,167.68 and 12,589.28 is: 17,380.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954.08 : 26,167.68 = 12,589.28 : x
  2. Step 2: Convert to fraction form
    18,954.08/26,167.68 = 12,589.28/x
  3. Step 3: Cross multiply
    18,954.08x = 26,167.68 × 12,589.28
  4. Step 4: Simplify right side
    18,954.08x = 329,432,250.47
  5. Step 5: Solve for x
    x = 329,432,250.47/18,954.08
  6. Step 6: Final answer
    x = 17,380.55

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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.