Home / 19,399.68-29,109.24-7,716.24

Finding the Fourth Proportional to 19,399.68, 29,109.24 and 7,716.24

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Solution

The fourth proportional to 19,399.68, 29,109.24 and 7,716.24 is: 11,578.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.68 : 29,109.24 = 7,716.24 : x
  2. Step 2: Convert to fraction form
    19,399.68/29,109.24 = 7,716.24/x
  3. Step 3: Cross multiply
    19,399.68x = 29,109.24 × 7,716.24
  4. Step 4: Simplify right side
    19,399.68x = 224,613,882.06
  5. Step 5: Solve for x
    x = 224,613,882.06/19,399.68
  6. Step 6: Final answer
    x = 11,578.23

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1.5x scale

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.