Home / 12,085.02-18,147.36-8,161.44

Finding the Fourth Proportional to 12,085.02, 18,147.36 and 8,161.44

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Solution

The fourth proportional to 12,085.02, 18,147.36 and 8,161.44 is: 12,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085.02 : 18,147.36 = 8,161.44 : x
  2. Step 2: Convert to fraction form
    12,085.02/18,147.36 = 8,161.44/x
  3. Step 3: Cross multiply
    12,085.02x = 18,147.36 × 8,161.44
  4. Step 4: Simplify right side
    12,085.02x = 148,108,589.80
  5. Step 5: Solve for x
    x = 148,108,589.80/12,085.02
  6. Step 6: Final answer
    x = 12,255.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.