Home / 11,419.90-17,132.62-3,628.74

Finding the Fourth Proportional to 11,419.90, 17,132.62 and 3,628.74

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Solution

The fourth proportional to 11,419.90, 17,132.62 and 3,628.74 is: 5,443.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,419.90 : 17,132.62 = 3,628.74 : x
  2. Step 2: Convert to fraction form
    11,419.90/17,132.62 = 3,628.74/x
  3. Step 3: Cross multiply
    11,419.90x = 17,132.62 × 3,628.74
  4. Step 4: Simplify right side
    11,419.90x = 62,169,823.50
  5. Step 5: Solve for x
    x = 62,169,823.50/11,419.90
  6. Step 6: Final answer
    x = 5,443.99

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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.