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Finding the Third Proportional to 7,120.13 and 9,784.13

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Solution

The third proportional to 7,120.13 and 9,784.13 is: 13,444.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.13 : 9,784.13 = 9,784.13 : x
  2. Step 2: Convert to fraction form
    7,120.13/9,784.13 = 9,784.13/x
  3. Step 3: Cross multiply
    7,120.13x = 9,784.13 × 9,784.13
  4. Step 4: Simplify right side
    7,120.13x = 95,729,102.02
  5. Step 5: Solve for x
    x = 95,729,102.02/7,120.13
  6. Step 6: Final answer
    x = 13,444.86

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.