Home / 8,920.31-13,383.16-3,375.35

Finding the Fourth Proportional to 8,920.31, 13,383.16 and 3,375.35

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Solution

The fourth proportional to 8,920.31, 13,383.16 and 3,375.35 is: 5,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.31 : 13,383.16 = 3,375.35 : x
  2. Step 2: Convert to fraction form
    8,920.31/13,383.16 = 3,375.35/x
  3. Step 3: Cross multiply
    8,920.31x = 13,383.16 × 3,375.35
  4. Step 4: Simplify right side
    8,920.31x = 45,172,849.11
  5. Step 5: Solve for x
    x = 45,172,849.11/8,920.31
  6. Step 6: Final answer
    x = 5,064.05

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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.