Home / 11,104.29-15,324.29-6,388.57

Finding the Fourth Proportional to 11,104.29, 15,324.29 and 6,388.57

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Solution

The fourth proportional to 11,104.29, 15,324.29 and 6,388.57 is: 8,816.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,104.29 : 15,324.29 = 6,388.57 : x
  2. Step 2: Convert to fraction form
    11,104.29/15,324.29 = 6,388.57/x
  3. Step 3: Cross multiply
    11,104.29x = 15,324.29 × 6,388.57
  4. Step 4: Simplify right side
    11,104.29x = 97,900,310.53
  5. Step 5: Solve for x
    x = 97,900,310.53/11,104.29
  6. Step 6: Final answer
    x = 8,816.44

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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.