Home / 8,979.42-13,470.21-3,057.30

Finding the Fourth Proportional to 8,979.42, 13,470.21 and 3,057.30

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Solution

The fourth proportional to 8,979.42, 13,470.21 and 3,057.30 is: 4,586.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.42 : 13,470.21 = 3,057.30 : x
  2. Step 2: Convert to fraction form
    8,979.42/13,470.21 = 3,057.30/x
  3. Step 3: Cross multiply
    8,979.42x = 13,470.21 × 3,057.30
  4. Step 4: Simplify right side
    8,979.42x = 41,182,473.03
  5. Step 5: Solve for x
    x = 41,182,473.03/8,979.42
  6. Step 6: Final answer
    x = 4,586.32

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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.