Home / 11,105.74-15,324.44-7,132.23

Finding the Fourth Proportional to 11,105.74, 15,324.44 and 7,132.23

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Solution

The fourth proportional to 11,105.74, 15,324.44 and 7,132.23 is: 9,841.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.74 : 15,324.44 = 7,132.23 : x
  2. Step 2: Convert to fraction form
    11,105.74/15,324.44 = 7,132.23/x
  3. Step 3: Cross multiply
    11,105.74x = 15,324.44 × 7,132.23
  4. Step 4: Simplify right side
    11,105.74x = 109,297,430.70
  5. Step 5: Solve for x
    x = 109,297,430.70/11,105.74
  6. Step 6: Final answer
    x = 9,841.53

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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.