Home / 8,979.50-12,392.14-5,202.84

Finding the Fourth Proportional to 8,979.50, 12,392.14 and 5,202.84

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Solution

The fourth proportional to 8,979.50, 12,392.14 and 5,202.84 is: 7,180.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.50 : 12,392.14 = 5,202.84 : x
  2. Step 2: Convert to fraction form
    8,979.50/12,392.14 = 5,202.84/x
  3. Step 3: Cross multiply
    8,979.50x = 12,392.14 × 5,202.84
  4. Step 4: Simplify right side
    8,979.50x = 64,474,321.68
  5. Step 5: Solve for x
    x = 64,474,321.68/8,979.50
  6. Step 6: Final answer
    x = 7,180.17

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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.