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Finding the Third Proportional to 7,309 and 9,925.50

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Solution

The third proportional to 7,309 and 9,925.50 is: 13,478.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,309 : 9,925.50 = 9,925.50 : x
  2. Step 2: Convert to fraction form
    7,309/9,925.50 = 9,925.50/x
  3. Step 3: Cross multiply
    7,309x = 9,925.50 × 9,925.50
  4. Step 4: Simplify right side
    7,309x = 98,515,550.25
  5. Step 5: Solve for x
    x = 98,515,550.25/7,309
  6. Step 6: Final answer
    x = 13,478.66

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.