Home / 12,711.07-17,542.20-7,676.52

Finding the Fourth Proportional to 12,711.07, 17,542.20 and 7,676.52

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Solution

The fourth proportional to 12,711.07, 17,542.20 and 7,676.52 is: 10,594.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.07 : 17,542.20 = 7,676.52 : x
  2. Step 2: Convert to fraction form
    12,711.07/17,542.20 = 7,676.52/x
  3. Step 3: Cross multiply
    12,711.07x = 17,542.20 × 7,676.52
  4. Step 4: Simplify right side
    12,711.07x = 134,663,049.14
  5. Step 5: Solve for x
    x = 134,663,049.14/12,711.07
  6. Step 6: Final answer
    x = 10,594.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.