Home / 10,375.80-15,563.70-3,450.30

Finding the Fourth Proportional to 10,375.80, 15,563.70 and 3,450.30

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Solution

The fourth proportional to 10,375.80, 15,563.70 and 3,450.30 is: 5,175.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,375.80 : 15,563.70 = 3,450.30 : x
  2. Step 2: Convert to fraction form
    10,375.80/15,563.70 = 3,450.30/x
  3. Step 3: Cross multiply
    10,375.80x = 15,563.70 × 3,450.30
  4. Step 4: Simplify right side
    10,375.80x = 53,699,434.11
  5. Step 5: Solve for x
    x = 53,699,434.11/10,375.80
  6. Step 6: Final answer
    x = 5,175.45

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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.