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Finding the Third Proportional to 4,707 and 7,141.50

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Solution

The third proportional to 4,707 and 7,141.50 is: 10,835.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,707 : 7,141.50 = 7,141.50 : x
  2. Step 2: Convert to fraction form
    4,707/7,141.50 = 7,141.50/x
  3. Step 3: Cross multiply
    4,707x = 7,141.50 × 7,141.50
  4. Step 4: Simplify right side
    4,707x = 51,001,022.25
  5. Step 5: Solve for x
    x = 51,001,022.25/4,707
  6. Step 6: Final answer
    x = 10,835.14

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.