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Finding the Third Proportional to 5,381 and 7,895.50

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Solution

The third proportional to 5,381 and 7,895.50 is: 11,585.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381 : 7,895.50 = 7,895.50 : x
  2. Step 2: Convert to fraction form
    5,381/7,895.50 = 7,895.50/x
  3. Step 3: Cross multiply
    5,381x = 7,895.50 × 7,895.50
  4. Step 4: Simplify right side
    5,381x = 62,338,920.25
  5. Step 5: Solve for x
    x = 62,338,920.25/5,381
  6. Step 6: Final answer
    x = 11,585.01

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.