Home / 8,979.81-12,399.39-5,794.68

Finding the Fourth Proportional to 8,979.81, 12,399.39 and 5,794.68

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Solution

The fourth proportional to 8,979.81, 12,399.39 and 5,794.68 is: 8,001.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.81 : 12,399.39 = 5,794.68 : x
  2. Step 2: Convert to fraction form
    8,979.81/12,399.39 = 5,794.68/x
  3. Step 3: Cross multiply
    8,979.81x = 12,399.39 × 5,794.68
  4. Step 4: Simplify right side
    8,979.81x = 71,850,497.25
  5. Step 5: Solve for x
    x = 71,850,497.25/8,979.81
  6. Step 6: Final answer
    x = 8,001.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.