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Finding the Third Proportional to 6,987.94 and 10,545.19

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Solution

The third proportional to 6,987.94 and 10,545.19 is: 15,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.94 : 10,545.19 = 10,545.19 : x
  2. Step 2: Convert to fraction form
    6,987.94/10,545.19 = 10,545.19/x
  3. Step 3: Cross multiply
    6,987.94x = 10,545.19 × 10,545.19
  4. Step 4: Simplify right side
    6,987.94x = 111,200,979.41
  5. Step 5: Solve for x
    x = 111,200,979.41/6,987.94
  6. Step 6: Final answer
    x = 15,913.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.