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Finding the Fourth Proportional to 7,631, 11,446.65 and 5,015.18

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Solution

The fourth proportional to 7,631, 11,446.65 and 5,015.18 is: 7,522.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631 : 11,446.65 = 5,015.18 : x
  2. Step 2: Convert to fraction form
    7,631/11,446.65 = 5,015.18/x
  3. Step 3: Cross multiply
    7,631x = 11,446.65 × 5,015.18
  4. Step 4: Simplify right side
    7,631x = 57,407,010.15
  5. Step 5: Solve for x
    x = 57,407,010.15/7,631
  6. Step 6: Final answer
    x = 7,522.87

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1.5x scale

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.