Home / 11,071.18-15,297.68-8,851.38

Finding the Fourth Proportional to 11,071.18, 15,297.68 and 8,851.38

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Solution

The fourth proportional to 11,071.18, 15,297.68 and 8,851.38 is: 12,230.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,071.18 : 15,297.68 = 8,851.38 : x
  2. Step 2: Convert to fraction form
    11,071.18/15,297.68 = 8,851.38/x
  3. Step 3: Cross multiply
    11,071.18x = 15,297.68 × 8,851.38
  4. Step 4: Simplify right side
    11,071.18x = 135,405,578.80
  5. Step 5: Solve for x
    x = 135,405,578.80/11,071.18
  6. Step 6: Final answer
    x = 12,230.46

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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.