Home / 8,691.33-13,036.31-2,451.09

Finding the Fourth Proportional to 8,691.33, 13,036.31 and 2,451.09

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Solution

The fourth proportional to 8,691.33, 13,036.31 and 2,451.09 is: 3,676.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.33 : 13,036.31 = 2,451.09 : x
  2. Step 2: Convert to fraction form
    8,691.33/13,036.31 = 2,451.09/x
  3. Step 3: Cross multiply
    8,691.33x = 13,036.31 × 2,451.09
  4. Step 4: Simplify right side
    8,691.33x = 31,953,175.21
  5. Step 5: Solve for x
    x = 31,953,175.21/8,691.33
  6. Step 6: Final answer
    x = 3,676.44

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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.