Home / 8,761.04-13,143.28-3,214.43

Finding the Fourth Proportional to 8,761.04, 13,143.28 and 3,214.43

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Solution

The fourth proportional to 8,761.04, 13,143.28 and 3,214.43 is: 4,822.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.04 : 13,143.28 = 3,214.43 : x
  2. Step 2: Convert to fraction form
    8,761.04/13,143.28 = 3,214.43/x
  3. Step 3: Cross multiply
    8,761.04x = 13,143.28 × 3,214.43
  4. Step 4: Simplify right side
    8,761.04x = 42,248,091.83
  5. Step 5: Solve for x
    x = 42,248,091.83/8,761.04
  6. Step 6: Final answer
    x = 4,822.27

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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.