Home / 10,505.43-15,758.55-3,930.93

Finding the Fourth Proportional to 10,505.43, 15,758.55 and 3,930.93

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Solution

The fourth proportional to 10,505.43, 15,758.55 and 3,930.93 is: 5,896.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,505.43 : 15,758.55 = 3,930.93 : x
  2. Step 2: Convert to fraction form
    10,505.43/15,758.55 = 3,930.93/x
  3. Step 3: Cross multiply
    10,505.43x = 15,758.55 × 3,930.93
  4. Step 4: Simplify right side
    10,505.43x = 61,945,756.95
  5. Step 5: Solve for x
    x = 61,945,756.95/10,505.43
  6. Step 6: Final answer
    x = 5,896.55

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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.