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Finding the Fourth Proportional to 8,253.02, 12,381.84 and 3,321.51

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Solution

The fourth proportional to 8,253.02, 12,381.84 and 3,321.51 is: 4,983.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.02 : 12,381.84 = 3,321.51 : x
  2. Step 2: Convert to fraction form
    8,253.02/12,381.84 = 3,321.51/x
  3. Step 3: Cross multiply
    8,253.02x = 12,381.84 × 3,321.51
  4. Step 4: Simplify right side
    8,253.02x = 41,126,349.60
  5. Step 5: Solve for x
    x = 41,126,349.60/8,253.02
  6. Step 6: Final answer
    x = 4,983.19

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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.