Home / 12,361.76-18,541.20-4,965.92

Finding the Fourth Proportional to 12,361.76, 18,541.20 and 4,965.92

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Solution

The fourth proportional to 12,361.76, 18,541.20 and 4,965.92 is: 7,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,361.76 : 18,541.20 = 4,965.92 : x
  2. Step 2: Convert to fraction form
    12,361.76/18,541.20 = 4,965.92/x
  3. Step 3: Cross multiply
    12,361.76x = 18,541.20 × 4,965.92
  4. Step 4: Simplify right side
    12,361.76x = 92,074,115.90
  5. Step 5: Solve for x
    x = 92,074,115.90/12,361.76
  6. Step 6: Final answer
    x = 7,448.30

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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.