Home / 18,930.72-26,116.32-11,374.56

Finding the Fourth Proportional to 18,930.72, 26,116.32 and 11,374.56

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Solution

The fourth proportional to 18,930.72, 26,116.32 and 11,374.56 is: 15,692.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.72 : 26,116.32 = 11,374.56 : x
  2. Step 2: Convert to fraction form
    18,930.72/26,116.32 = 11,374.56/x
  3. Step 3: Cross multiply
    18,930.72x = 26,116.32 × 11,374.56
  4. Step 4: Simplify right side
    18,930.72x = 297,061,648.82
  5. Step 5: Solve for x
    x = 297,061,648.82/18,930.72
  6. Step 6: Final answer
    x = 15,692.04

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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.