Home / 10,542.27-15,813.10-3,146.79

Finding the Fourth Proportional to 10,542.27, 15,813.10 and 3,146.79

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Solution

The fourth proportional to 10,542.27, 15,813.10 and 3,146.79 is: 4,720.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,542.27 : 15,813.10 = 3,146.79 : x
  2. Step 2: Convert to fraction form
    10,542.27/15,813.10 = 3,146.79/x
  3. Step 3: Cross multiply
    10,542.27x = 15,813.10 × 3,146.79
  4. Step 4: Simplify right side
    10,542.27x = 49,760,418.02
  5. Step 5: Solve for x
    x = 49,760,418.02/10,542.27
  6. Step 6: Final answer
    x = 4,720.09

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1.5x scale

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.