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Finding the Fourth Proportional to 8,177.52, 12,161.76 and 8,090.04

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Solution

The fourth proportional to 8,177.52, 12,161.76 and 8,090.04 is: 12,031.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,177.52 : 12,161.76 = 8,090.04 : x
  2. Step 2: Convert to fraction form
    8,177.52/12,161.76 = 8,090.04/x
  3. Step 3: Cross multiply
    8,177.52x = 12,161.76 × 8,090.04
  4. Step 4: Simplify right side
    8,177.52x = 98,389,124.87
  5. Step 5: Solve for x
    x = 98,389,124.87/8,177.52
  6. Step 6: Final answer
    x = 12,031.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.