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Finding the Fourth Proportional to 8,395.52, 12,593.28 and 3,999.65

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Solution

The fourth proportional to 8,395.52, 12,593.28 and 3,999.65 is: 5,999.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,395.52 : 12,593.28 = 3,999.65 : x
  2. Step 2: Convert to fraction form
    8,395.52/12,593.28 = 3,999.65/x
  3. Step 3: Cross multiply
    8,395.52x = 12,593.28 × 3,999.65
  4. Step 4: Simplify right side
    8,395.52x = 50,368,649.39
  5. Step 5: Solve for x
    x = 50,368,649.39/8,395.52
  6. Step 6: Final answer
    x = 5,999.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.