Home / 8,979.09-13,468.62-2,405.11

Finding the Fourth Proportional to 8,979.09, 13,468.62 and 2,405.11

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Solution

The fourth proportional to 8,979.09, 13,468.62 and 2,405.11 is: 3,607.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.09 : 13,468.62 = 2,405.11 : x
  2. Step 2: Convert to fraction form
    8,979.09/13,468.62 = 2,405.11/x
  3. Step 3: Cross multiply
    8,979.09x = 13,468.62 × 2,405.11
  4. Step 4: Simplify right side
    8,979.09x = 32,393,512.65
  5. Step 5: Solve for x
    x = 32,393,512.65/8,979.09
  6. Step 6: Final answer
    x = 3,607.66

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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.