Home / 11,126.82-15,353.50-6,649.62

Finding the Fourth Proportional to 11,126.82, 15,353.50 and 6,649.62

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Solution

The fourth proportional to 11,126.82, 15,353.50 and 6,649.62 is: 9,175.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,126.82 : 15,353.50 = 6,649.62 : x
  2. Step 2: Convert to fraction form
    11,126.82/15,353.50 = 6,649.62/x
  3. Step 3: Cross multiply
    11,126.82x = 15,353.50 × 6,649.62
  4. Step 4: Simplify right side
    11,126.82x = 102,094,940.67
  5. Step 5: Solve for x
    x = 102,094,940.67/11,126.82
  6. Step 6: Final answer
    x = 9,175.57

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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.