Home / 10,357.26-15,535.62-3,431.76

Finding the Fourth Proportional to 10,357.26, 15,535.62 and 3,431.76

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Solution

The fourth proportional to 10,357.26, 15,535.62 and 3,431.76 is: 5,147.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,357.26 : 15,535.62 = 3,431.76 : x
  2. Step 2: Convert to fraction form
    10,357.26/15,535.62 = 3,431.76/x
  3. Step 3: Cross multiply
    10,357.26x = 15,535.62 × 3,431.76
  4. Step 4: Simplify right side
    10,357.26x = 53,314,519.29
  5. Step 5: Solve for x
    x = 53,314,519.29/10,357.26
  6. Step 6: Final answer
    x = 5,147.55

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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.