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Finding the Third Proportional to 7,130.53 and 7,629.19

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Solution

The third proportional to 7,130.53 and 7,629.19 is: 8,162.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.53 : 7,629.19 = 7,629.19 : x
  2. Step 2: Convert to fraction form
    7,130.53/7,629.19 = 7,629.19/x
  3. Step 3: Cross multiply
    7,130.53x = 7,629.19 × 7,629.19
  4. Step 4: Simplify right side
    7,130.53x = 58,204,501.91
  5. Step 5: Solve for x
    x = 58,204,501.91/7,130.53
  6. Step 6: Final answer
    x = 8,162.72

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.