Home / 11,928.21-17,872.87-9,449.61

Finding the Fourth Proportional to 11,928.21, 17,872.87 and 9,449.61

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Solution

The fourth proportional to 11,928.21, 17,872.87 and 9,449.61 is: 14,159.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.21 : 17,872.87 = 9,449.61 : x
  2. Step 2: Convert to fraction form
    11,928.21/17,872.87 = 9,449.61/x
  3. Step 3: Cross multiply
    11,928.21x = 17,872.87 × 9,449.61
  4. Step 4: Simplify right side
    11,928.21x = 168,891,651.08
  5. Step 5: Solve for x
    x = 168,891,651.08/11,928.21
  6. Step 6: Final answer
    x = 14,159.01

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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.