Home / 11,358.82-15,675.29-6,645.84

Finding the Fourth Proportional to 11,358.82, 15,675.29 and 6,645.84

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Solution

The fourth proportional to 11,358.82, 15,675.29 and 6,645.84 is: 9,171.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,358.82 : 15,675.29 = 6,645.84 : x
  2. Step 2: Convert to fraction form
    11,358.82/15,675.29 = 6,645.84/x
  3. Step 3: Cross multiply
    11,358.82x = 15,675.29 × 6,645.84
  4. Step 4: Simplify right side
    11,358.82x = 104,175,469.29
  5. Step 5: Solve for x
    x = 104,175,469.29/11,358.82
  6. Step 6: Final answer
    x = 9,171.33

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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.