Home / 8,761.40-13,134.30-3,213.46

Finding the Fourth Proportional to 8,761.40, 13,134.30 and 3,213.46

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Solution

The fourth proportional to 8,761.40, 13,134.30 and 3,213.46 is: 4,817.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.40 : 13,134.30 = 3,213.46 : x
  2. Step 2: Convert to fraction form
    8,761.40/13,134.30 = 3,213.46/x
  3. Step 3: Cross multiply
    8,761.40x = 13,134.30 × 3,213.46
  4. Step 4: Simplify right side
    8,761.40x = 42,206,547.68
  5. Step 5: Solve for x
    x = 42,206,547.68/8,761.40
  6. Step 6: Final answer
    x = 4,817.33

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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.