Home / 8,122.39-12,185.10-2,574.24

Finding the Fourth Proportional to 8,122.39, 12,185.10 and 2,574.24

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Solution

The fourth proportional to 8,122.39, 12,185.10 and 2,574.24 is: 3,861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.39 : 12,185.10 = 2,574.24 : x
  2. Step 2: Convert to fraction form
    8,122.39/12,185.10 = 2,574.24/x
  3. Step 3: Cross multiply
    8,122.39x = 12,185.10 × 2,574.24
  4. Step 4: Simplify right side
    8,122.39x = 31,367,427.17
  5. Step 5: Solve for x
    x = 31,367,427.17/8,122.39
  6. Step 6: Final answer
    x = 3,861.85

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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.