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Finding the Third Proportional to 5,451.47 and 10,219.08

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Solution

The third proportional to 5,451.47 and 10,219.08 is: 19,156.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.47 : 10,219.08 = 10,219.08 : x
  2. Step 2: Convert to fraction form
    5,451.47/10,219.08 = 10,219.08/x
  3. Step 3: Cross multiply
    5,451.47x = 10,219.08 × 10,219.08
  4. Step 4: Simplify right side
    5,451.47x = 104,429,557.72
  5. Step 5: Solve for x
    x = 104,429,557.72/5,451.47
  6. Step 6: Final answer
    x = 19,156.22

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.