Home / 8,964.90-13,451.31-3,125.70

Finding the Fourth Proportional to 8,964.90, 13,451.31 and 3,125.70

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Solution

The fourth proportional to 8,964.90, 13,451.31 and 3,125.70 is: 4,689.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.90 : 13,451.31 = 3,125.70 : x
  2. Step 2: Convert to fraction form
    8,964.90/13,451.31 = 3,125.70/x
  3. Step 3: Cross multiply
    8,964.90x = 13,451.31 × 3,125.70
  4. Step 4: Simplify right side
    8,964.90x = 42,044,759.67
  5. Step 5: Solve for x
    x = 42,044,759.67/8,964.90
  6. Step 6: Final answer
    x = 4,689.93

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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.