Home / 9,279.18-13,921.11-2,705.40

Finding the Fourth Proportional to 9,279.18, 13,921.11 and 2,705.40

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Solution

The fourth proportional to 9,279.18, 13,921.11 and 2,705.40 is: 4,058.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.18 : 13,921.11 = 2,705.40 : x
  2. Step 2: Convert to fraction form
    9,279.18/13,921.11 = 2,705.40/x
  3. Step 3: Cross multiply
    9,279.18x = 13,921.11 × 2,705.40
  4. Step 4: Simplify right side
    9,279.18x = 37,662,170.99
  5. Step 5: Solve for x
    x = 37,662,170.99/9,279.18
  6. Step 6: Final answer
    x = 4,058.78

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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.