Home / 10,087.46-13,920.33-5,611.11

Finding the Fourth Proportional to 10,087.46, 13,920.33 and 5,611.11

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Solution

The fourth proportional to 10,087.46, 13,920.33 and 5,611.11 is: 7,743.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.46 : 13,920.33 = 5,611.11 : x
  2. Step 2: Convert to fraction form
    10,087.46/13,920.33 = 5,611.11/x
  3. Step 3: Cross multiply
    10,087.46x = 13,920.33 × 5,611.11
  4. Step 4: Simplify right side
    10,087.46x = 78,108,502.87
  5. Step 5: Solve for x
    x = 78,108,502.87/10,087.46
  6. Step 6: Final answer
    x = 7,743.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.