Home / 9,020.40-13,536-3,181.92

Finding the Fourth Proportional to 9,020.40, 13,536 and 3,181.92

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Solution

The fourth proportional to 9,020.40, 13,536 and 3,181.92 is: 4,774.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,020.40 : 13,536 = 3,181.92 : x
  2. Step 2: Convert to fraction form
    9,020.40/13,536 = 3,181.92/x
  3. Step 3: Cross multiply
    9,020.40x = 13,536 × 3,181.92
  4. Step 4: Simplify right side
    9,020.40x = 43,070,469.12
  5. Step 5: Solve for x
    x = 43,070,469.12/9,020.40
  6. Step 6: Final answer
    x = 4,774.78

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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.