Home / 11,719.90-17,568.54-4,320.31

Finding the Fourth Proportional to 11,719.90, 17,568.54 and 4,320.31

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Solution

The fourth proportional to 11,719.90, 17,568.54 and 4,320.31 is: 6,476.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.90 : 17,568.54 = 4,320.31 : x
  2. Step 2: Convert to fraction form
    11,719.90/17,568.54 = 4,320.31/x
  3. Step 3: Cross multiply
    11,719.90x = 17,568.54 × 4,320.31
  4. Step 4: Simplify right side
    11,719.90x = 75,901,539.05
  5. Step 5: Solve for x
    x = 75,901,539.05/11,719.90
  6. Step 6: Final answer
    x = 6,476.30

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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.