Home / 7,677.11-11,522.50-3,981.89

Finding the Fourth Proportional to 7,677.11, 11,522.50 and 3,981.89

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Solution

The fourth proportional to 7,677.11, 11,522.50 and 3,981.89 is: 5,976.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,677.11 : 11,522.50 = 3,981.89 : x
  2. Step 2: Convert to fraction form
    7,677.11/11,522.50 = 3,981.89/x
  3. Step 3: Cross multiply
    7,677.11x = 11,522.50 × 3,981.89
  4. Step 4: Simplify right side
    7,677.11x = 45,881,346.38
  5. Step 5: Solve for x
    x = 45,881,346.38/7,677.11
  6. Step 6: Final answer
    x = 5,976.38

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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.