Home / 11,285.28-16,909.25-7,982.01

Finding the Fourth Proportional to 11,285.28, 16,909.25 and 7,982.01

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Solution

The fourth proportional to 11,285.28, 16,909.25 and 7,982.01 is: 11,959.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.28 : 16,909.25 = 7,982.01 : x
  2. Step 2: Convert to fraction form
    11,285.28/16,909.25 = 7,982.01/x
  3. Step 3: Cross multiply
    11,285.28x = 16,909.25 × 7,982.01
  4. Step 4: Simplify right side
    11,285.28x = 134,969,762.68
  5. Step 5: Solve for x
    x = 134,969,762.68/11,285.28
  6. Step 6: Final answer
    x = 11,959.81

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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.