Home / 8,474.51-12,717.09-3,280.38

Finding the Fourth Proportional to 8,474.51, 12,717.09 and 3,280.38

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Solution

The fourth proportional to 8,474.51, 12,717.09 and 3,280.38 is: 4,922.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.51 : 12,717.09 = 3,280.38 : x
  2. Step 2: Convert to fraction form
    8,474.51/12,717.09 = 3,280.38/x
  3. Step 3: Cross multiply
    8,474.51x = 12,717.09 × 3,280.38
  4. Step 4: Simplify right side
    8,474.51x = 41,716,887.69
  5. Step 5: Solve for x
    x = 41,716,887.69/8,474.51
  6. Step 6: Final answer
    x = 4,922.63

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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.