Home / 8,161.50-11,266.31-5,512.49

Finding the Fourth Proportional to 8,161.50, 11,266.31 and 5,512.49

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Solution

The fourth proportional to 8,161.50, 11,266.31 and 5,512.49 is: 7,609.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161.50 : 11,266.31 = 5,512.49 : x
  2. Step 2: Convert to fraction form
    8,161.50/11,266.31 = 5,512.49/x
  3. Step 3: Cross multiply
    8,161.50x = 11,266.31 × 5,512.49
  4. Step 4: Simplify right side
    8,161.50x = 62,105,421.21
  5. Step 5: Solve for x
    x = 62,105,421.21/8,161.50
  6. Step 6: Final answer
    x = 7,609.56

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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.