Home / 8,264.10-12,385.62-3,871.88

Finding the Fourth Proportional to 8,264.10, 12,385.62 and 3,871.88

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Solution

The fourth proportional to 8,264.10, 12,385.62 and 3,871.88 is: 5,802.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,264.10 : 12,385.62 = 3,871.88 : x
  2. Step 2: Convert to fraction form
    8,264.10/12,385.62 = 3,871.88/x
  3. Step 3: Cross multiply
    8,264.10x = 12,385.62 × 3,871.88
  4. Step 4: Simplify right side
    8,264.10x = 47,955,634.37
  5. Step 5: Solve for x
    x = 47,955,634.37/8,264.10
  6. Step 6: Final answer
    x = 5,802.89

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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.