Home / 12,635.28-18,954.08-3,275.28

Finding the Fourth Proportional to 12,635.28, 18,954.08 and 3,275.28

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Solution

The fourth proportional to 12,635.28, 18,954.08 and 3,275.28 is: 4,913.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635.28 : 18,954.08 = 3,275.28 : x
  2. Step 2: Convert to fraction form
    12,635.28/18,954.08 = 3,275.28/x
  3. Step 3: Cross multiply
    12,635.28x = 18,954.08 × 3,275.28
  4. Step 4: Simplify right side
    12,635.28x = 62,079,919.14
  5. Step 5: Solve for x
    x = 62,079,919.14/12,635.28
  6. Step 6: Final answer
    x = 4,913.22

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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.