Home / 8,131.15-12,199.02-2,287.81

Finding the Fourth Proportional to 8,131.15, 12,199.02 and 2,287.81

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Solution

The fourth proportional to 8,131.15, 12,199.02 and 2,287.81 is: 3,432.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.15 : 12,199.02 = 2,287.81 : x
  2. Step 2: Convert to fraction form
    8,131.15/12,199.02 = 2,287.81/x
  3. Step 3: Cross multiply
    8,131.15x = 12,199.02 × 2,287.81
  4. Step 4: Simplify right side
    8,131.15x = 27,909,039.95
  5. Step 5: Solve for x
    x = 27,909,039.95/8,131.15
  6. Step 6: Final answer
    x = 3,432.36

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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.