Home / 8,979.90-13,468.88-2,406.74

Finding the Fourth Proportional to 8,979.90, 13,468.88 and 2,406.74

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Solution

The fourth proportional to 8,979.90, 13,468.88 and 2,406.74 is: 3,609.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.90 : 13,468.88 = 2,406.74 : x
  2. Step 2: Convert to fraction form
    8,979.90/13,468.88 = 2,406.74/x
  3. Step 3: Cross multiply
    8,979.90x = 13,468.88 × 2,406.74
  4. Step 4: Simplify right side
    8,979.90x = 32,416,092.25
  5. Step 5: Solve for x
    x = 32,416,092.25/8,979.90
  6. Step 6: Final answer
    x = 3,609.85

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1.5x scale

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.