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Finding the Fourth Proportional to 7,650.80, 10,553.25 and 5,529.45

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Solution

The fourth proportional to 7,650.80, 10,553.25 and 5,529.45 is: 7,627.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,650.80 : 10,553.25 = 5,529.45 : x
  2. Step 2: Convert to fraction form
    7,650.80/10,553.25 = 5,529.45/x
  3. Step 3: Cross multiply
    7,650.80x = 10,553.25 × 5,529.45
  4. Step 4: Simplify right side
    7,650.80x = 58,353,668.21
  5. Step 5: Solve for x
    x = 58,353,668.21/7,650.80
  6. Step 6: Final answer
    x = 7,627.13

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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.