Home / 11,890.28-17,836.32-3,569.65

Finding the Fourth Proportional to 11,890.28, 17,836.32 and 3,569.65

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Solution

The fourth proportional to 11,890.28, 17,836.32 and 3,569.65 is: 5,354.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.28 : 17,836.32 = 3,569.65 : x
  2. Step 2: Convert to fraction form
    11,890.28/17,836.32 = 3,569.65/x
  3. Step 3: Cross multiply
    11,890.28x = 17,836.32 × 3,569.65
  4. Step 4: Simplify right side
    11,890.28x = 63,669,419.69
  5. Step 5: Solve for x
    x = 63,669,419.69/11,890.28
  6. Step 6: Final answer
    x = 5,354.75

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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.