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Finding the Fourth Proportional to 8,174.72, 12,264.11 and 2,628.69

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Solution

The fourth proportional to 8,174.72, 12,264.11 and 2,628.69 is: 3,943.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,174.72 : 12,264.11 = 2,628.69 : x
  2. Step 2: Convert to fraction form
    8,174.72/12,264.11 = 2,628.69/x
  3. Step 3: Cross multiply
    8,174.72x = 12,264.11 × 2,628.69
  4. Step 4: Simplify right side
    8,174.72x = 32,238,494.04
  5. Step 5: Solve for x
    x = 32,238,494.04/8,174.72
  6. Step 6: Final answer
    x = 3,943.68

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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.