Home / 10,572.12-15,855.89-3,175.11

Finding the Fourth Proportional to 10,572.12, 15,855.89 and 3,175.11

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Solution

The fourth proportional to 10,572.12, 15,855.89 and 3,175.11 is: 4,761.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572.12 : 15,855.89 = 3,175.11 : x
  2. Step 2: Convert to fraction form
    10,572.12/15,855.89 = 3,175.11/x
  3. Step 3: Cross multiply
    10,572.12x = 15,855.89 × 3,175.11
  4. Step 4: Simplify right side
    10,572.12x = 50,344,179.02
  5. Step 5: Solve for x
    x = 50,344,179.02/10,572.12
  6. Step 6: Final answer
    x = 4,761.98

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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.