Home / 8,979.93-13,469.90-2,405.95

Finding the Fourth Proportional to 8,979.93, 13,469.90 and 2,405.95

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Solution

The fourth proportional to 8,979.93, 13,469.90 and 2,405.95 is: 3,608.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.93 : 13,469.90 = 2,405.95 : x
  2. Step 2: Convert to fraction form
    8,979.93/13,469.90 = 2,405.95/x
  3. Step 3: Cross multiply
    8,979.93x = 13,469.90 × 2,405.95
  4. Step 4: Simplify right side
    8,979.93x = 32,407,905.91
  5. Step 5: Solve for x
    x = 32,407,905.91/8,979.93
  6. Step 6: Final answer
    x = 3,608.93

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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.