Home / 11,428.68-17,125.38-7,716.36

Finding the Fourth Proportional to 11,428.68, 17,125.38 and 7,716.36

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Solution

The fourth proportional to 11,428.68, 17,125.38 and 7,716.36 is: 11,562.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.68 : 17,125.38 = 7,716.36 : x
  2. Step 2: Convert to fraction form
    11,428.68/17,125.38 = 7,716.36/x
  3. Step 3: Cross multiply
    11,428.68x = 17,125.38 × 7,716.36
  4. Step 4: Simplify right side
    11,428.68x = 132,145,597.22
  5. Step 5: Solve for x
    x = 132,145,597.22/11,428.68
  6. Step 6: Final answer
    x = 11,562.63

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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.