Home / 10,912.56-16,368.64-3,517.12

Finding the Fourth Proportional to 10,912.56, 16,368.64 and 3,517.12

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Solution

The fourth proportional to 10,912.56, 16,368.64 and 3,517.12 is: 5,275.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.56 : 16,368.64 = 3,517.12 : x
  2. Step 2: Convert to fraction form
    10,912.56/16,368.64 = 3,517.12/x
  3. Step 3: Cross multiply
    10,912.56x = 16,368.64 × 3,517.12
  4. Step 4: Simplify right side
    10,912.56x = 57,570,471.12
  5. Step 5: Solve for x
    x = 57,570,471.12/10,912.56
  6. Step 6: Final answer
    x = 5,275.62

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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.