Home / 8,960.28-13,445.82-3,120.99

Finding the Fourth Proportional to 8,960.28, 13,445.82 and 3,120.99

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Solution

The fourth proportional to 8,960.28, 13,445.82 and 3,120.99 is: 4,683.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.28 : 13,445.82 = 3,120.99 : x
  2. Step 2: Convert to fraction form
    8,960.28/13,445.82 = 3,120.99/x
  3. Step 3: Cross multiply
    8,960.28x = 13,445.82 × 3,120.99
  4. Step 4: Simplify right side
    8,960.28x = 41,964,269.76
  5. Step 5: Solve for x
    x = 41,964,269.76/8,960.28
  6. Step 6: Final answer
    x = 4,683.37

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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.