Home / 8,100.10-11,161.48-6,211.59

Finding the Fourth Proportional to 8,100.10, 11,161.48 and 6,211.59

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Solution

The fourth proportional to 8,100.10, 11,161.48 and 6,211.59 is: 8,559.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.10 : 11,161.48 = 6,211.59 : x
  2. Step 2: Convert to fraction form
    8,100.10/11,161.48 = 6,211.59/x
  3. Step 3: Cross multiply
    8,100.10x = 11,161.48 × 6,211.59
  4. Step 4: Simplify right side
    8,100.10x = 69,330,537.55
  5. Step 5: Solve for x
    x = 69,330,537.55/8,100.10
  6. Step 6: Final answer
    x = 8,559.22

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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.