Home / 10,912.66-16,376.16-5,985.75

Finding the Fourth Proportional to 10,912.66, 16,376.16 and 5,985.75

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Solution

The fourth proportional to 10,912.66, 16,376.16 and 5,985.75 is: 8,982.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.66 : 16,376.16 = 5,985.75 : x
  2. Step 2: Convert to fraction form
    10,912.66/16,376.16 = 5,985.75/x
  3. Step 3: Cross multiply
    10,912.66x = 16,376.16 × 5,985.75
  4. Step 4: Simplify right side
    10,912.66x = 98,023,599.72
  5. Step 5: Solve for x
    x = 98,023,599.72/10,912.66
  6. Step 6: Final answer
    x = 8,982.56

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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.