Home / 9,311.33-13,957.68-5,153.20

Finding the Fourth Proportional to 9,311.33, 13,957.68 and 5,153.20

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Solution

The fourth proportional to 9,311.33, 13,957.68 and 5,153.20 is: 7,724.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,311.33 : 13,957.68 = 5,153.20 : x
  2. Step 2: Convert to fraction form
    9,311.33/13,957.68 = 5,153.20/x
  3. Step 3: Cross multiply
    9,311.33x = 13,957.68 × 5,153.20
  4. Step 4: Simplify right side
    9,311.33x = 71,926,716.58
  5. Step 5: Solve for x
    x = 71,926,716.58/9,311.33
  6. Step 6: Final answer
    x = 7,724.64

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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.