Home / 8,083.66-12,131.05-2,818.71

Finding the Fourth Proportional to 8,083.66, 12,131.05 and 2,818.71

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Solution

The fourth proportional to 8,083.66, 12,131.05 and 2,818.71 is: 4,230.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083.66 : 12,131.05 = 2,818.71 : x
  2. Step 2: Convert to fraction form
    8,083.66/12,131.05 = 2,818.71/x
  3. Step 3: Cross multiply
    8,083.66x = 12,131.05 × 2,818.71
  4. Step 4: Simplify right side
    8,083.66x = 34,193,851.29
  5. Step 5: Solve for x
    x = 34,193,851.29/8,083.66
  6. Step 6: Final answer
    x = 4,230.00

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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.