Home / 11,013.53-15,198.68-5,977.76

Finding the Fourth Proportional to 11,013.53, 15,198.68 and 5,977.76

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Solution

The fourth proportional to 11,013.53, 15,198.68 and 5,977.76 is: 8,249.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,013.53 : 15,198.68 = 5,977.76 : x
  2. Step 2: Convert to fraction form
    11,013.53/15,198.68 = 5,977.76/x
  3. Step 3: Cross multiply
    11,013.53x = 15,198.68 × 5,977.76
  4. Step 4: Simplify right side
    11,013.53x = 90,854,000.31
  5. Step 5: Solve for x
    x = 90,854,000.31/11,013.53
  6. Step 6: Final answer
    x = 8,249.31

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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.