Home / 16,979.68-25,457.19-11,419.21

Finding the Fourth Proportional to 16,979.68, 25,457.19 and 11,419.21

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Solution

The fourth proportional to 16,979.68, 25,457.19 and 11,419.21 is: 17,120.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,979.68 : 25,457.19 = 11,419.21 : x
  2. Step 2: Convert to fraction form
    16,979.68/25,457.19 = 11,419.21/x
  3. Step 3: Cross multiply
    16,979.68x = 25,457.19 × 11,419.21
  4. Step 4: Simplify right side
    16,979.68x = 290,700,998.62
  5. Step 5: Solve for x
    x = 290,700,998.62/16,979.68
  6. Step 6: Final answer
    x = 17,120.52

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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.