Home / 12,282.95-18,424.35-3,517.88

Finding the Fourth Proportional to 12,282.95, 18,424.35 and 3,517.88

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Solution

The fourth proportional to 12,282.95, 18,424.35 and 3,517.88 is: 5,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.95 : 18,424.35 = 3,517.88 : x
  2. Step 2: Convert to fraction form
    12,282.95/18,424.35 = 3,517.88/x
  3. Step 3: Cross multiply
    12,282.95x = 18,424.35 × 3,517.88
  4. Step 4: Simplify right side
    12,282.95x = 64,814,652.38
  5. Step 5: Solve for x
    x = 64,814,652.38/12,282.95
  6. Step 6: Final answer
    x = 5,276.80

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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.