Home / 12,451.53-18,677.25-3,685.76

Finding the Fourth Proportional to 12,451.53, 18,677.25 and 3,685.76

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Solution

The fourth proportional to 12,451.53, 18,677.25 and 3,685.76 is: 5,528.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451.53 : 18,677.25 = 3,685.76 : x
  2. Step 2: Convert to fraction form
    12,451.53/18,677.25 = 3,685.76/x
  3. Step 3: Cross multiply
    12,451.53x = 18,677.25 × 3,685.76
  4. Step 4: Simplify right side
    12,451.53x = 68,839,767.57
  5. Step 5: Solve for x
    x = 68,839,767.57/12,451.53
  6. Step 6: Final answer
    x = 5,528.62

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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.