Home / 8,979.13-13,468.88-2,405.31

Finding the Fourth Proportional to 8,979.13, 13,468.88 and 2,405.31

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Solution

The fourth proportional to 8,979.13, 13,468.88 and 2,405.31 is: 3,608.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.13 : 13,468.88 = 2,405.31 : x
  2. Step 2: Convert to fraction form
    8,979.13/13,468.88 = 2,405.31/x
  3. Step 3: Cross multiply
    8,979.13x = 13,468.88 × 2,405.31
  4. Step 4: Simplify right side
    8,979.13x = 32,396,831.75
  5. Step 5: Solve for x
    x = 32,396,831.75/8,979.13
  6. Step 6: Final answer
    x = 3,608.01

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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.