Home / 11,765.28-17,647.52-5,521.80

Finding the Fourth Proportional to 11,765.28, 17,647.52 and 5,521.80

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Solution

The fourth proportional to 11,765.28, 17,647.52 and 5,521.80 is: 8,282.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,765.28 : 17,647.52 = 5,521.80 : x
  2. Step 2: Convert to fraction form
    11,765.28/17,647.52 = 5,521.80/x
  3. Step 3: Cross multiply
    11,765.28x = 17,647.52 × 5,521.80
  4. Step 4: Simplify right side
    11,765.28x = 97,446,145.57
  5. Step 5: Solve for x
    x = 97,446,145.57/11,765.28
  6. Step 6: Final answer
    x = 8,282.52

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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.