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Finding the Third Proportional to 5,715.56 and 8,907.47

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Solution

The third proportional to 5,715.56 and 8,907.47 is: 13,881.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.56 : 8,907.47 = 8,907.47 : x
  2. Step 2: Convert to fraction form
    5,715.56/8,907.47 = 8,907.47/x
  3. Step 3: Cross multiply
    5,715.56x = 8,907.47 × 8,907.47
  4. Step 4: Simplify right side
    5,715.56x = 79,342,999.53
  5. Step 5: Solve for x
    x = 79,342,999.53/5,715.56
  6. Step 6: Final answer
    x = 13,881.92

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.