Home / 8,979.05-13,467.47-2,405.70

Finding the Fourth Proportional to 8,979.05, 13,467.47 and 2,405.70

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Solution

The fourth proportional to 8,979.05, 13,467.47 and 2,405.70 is: 3,608.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.05 : 13,467.47 = 2,405.70 : x
  2. Step 2: Convert to fraction form
    8,979.05/13,467.47 = 2,405.70/x
  3. Step 3: Cross multiply
    8,979.05x = 13,467.47 × 2,405.70
  4. Step 4: Simplify right side
    8,979.05x = 32,398,680.55
  5. Step 5: Solve for x
    x = 32,398,680.55/8,979.05
  6. Step 6: Final answer
    x = 3,608.25

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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.