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Finding the Fourth Proportional to 7,650.65, 10,553.96 and 5,102.79

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Solution

The fourth proportional to 7,650.65, 10,553.96 and 5,102.79 is: 7,039.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,650.65 : 10,553.96 = 5,102.79 : x
  2. Step 2: Convert to fraction form
    7,650.65/10,553.96 = 5,102.79/x
  3. Step 3: Cross multiply
    7,650.65x = 10,553.96 × 5,102.79
  4. Step 4: Simplify right side
    7,650.65x = 53,854,616.03
  5. Step 5: Solve for x
    x = 53,854,616.03/7,650.65
  6. Step 6: Final answer
    x = 7,039.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.