Home / 11,717.46-17,579.23-5,145.53

Finding the Fourth Proportional to 11,717.46, 17,579.23 and 5,145.53

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Solution

The fourth proportional to 11,717.46, 17,579.23 and 5,145.53 is: 7,719.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,717.46 : 17,579.23 = 5,145.53 : x
  2. Step 2: Convert to fraction form
    11,717.46/17,579.23 = 5,145.53/x
  3. Step 3: Cross multiply
    11,717.46x = 17,579.23 × 5,145.53
  4. Step 4: Simplify right side
    11,717.46x = 90,454,354.58
  5. Step 5: Solve for x
    x = 90,454,354.58/11,717.46
  6. Step 6: Final answer
    x = 7,719.62

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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.