Home / 10,986.79-16,480.11-4,412.88

Finding the Fourth Proportional to 10,986.79, 16,480.11 and 4,412.88

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Solution

The fourth proportional to 10,986.79, 16,480.11 and 4,412.88 is: 6,619.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.79 : 16,480.11 = 4,412.88 : x
  2. Step 2: Convert to fraction form
    10,986.79/16,480.11 = 4,412.88/x
  3. Step 3: Cross multiply
    10,986.79x = 16,480.11 × 4,412.88
  4. Step 4: Simplify right side
    10,986.79x = 72,724,739.54
  5. Step 5: Solve for x
    x = 72,724,739.54/10,986.79
  6. Step 6: Final answer
    x = 6,619.29

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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.