Home / 8,216.12-12,314.61-3,287.17

Finding the Fourth Proportional to 8,216.12, 12,314.61 and 3,287.17

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Solution

The fourth proportional to 8,216.12, 12,314.61 and 3,287.17 is: 4,926.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216.12 : 12,314.61 = 3,287.17 : x
  2. Step 2: Convert to fraction form
    8,216.12/12,314.61 = 3,287.17/x
  3. Step 3: Cross multiply
    8,216.12x = 12,314.61 × 3,287.17
  4. Step 4: Simplify right side
    8,216.12x = 40,480,216.55
  5. Step 5: Solve for x
    x = 40,480,216.55/8,216.12
  6. Step 6: Final answer
    x = 4,926.93

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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.