Home / 10,542.93-15,814.36-3,147.19

Finding the Fourth Proportional to 10,542.93, 15,814.36 and 3,147.19

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Solution

The fourth proportional to 10,542.93, 15,814.36 and 3,147.19 is: 4,720.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,542.93 : 15,814.36 = 3,147.19 : x
  2. Step 2: Convert to fraction form
    10,542.93/15,814.36 = 3,147.19/x
  3. Step 3: Cross multiply
    10,542.93x = 15,814.36 × 3,147.19
  4. Step 4: Simplify right side
    10,542.93x = 49,770,795.65
  5. Step 5: Solve for x
    x = 49,770,795.65/10,542.93
  6. Step 6: Final answer
    x = 4,720.77

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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.