Home / 11,419.39-17,104.78-6,486.49

Finding the Fourth Proportional to 11,419.39, 17,104.78 and 6,486.49

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Solution

The fourth proportional to 11,419.39, 17,104.78 and 6,486.49 is: 9,715.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,419.39 : 17,104.78 = 6,486.49 : x
  2. Step 2: Convert to fraction form
    11,419.39/17,104.78 = 6,486.49/x
  3. Step 3: Cross multiply
    11,419.39x = 17,104.78 × 6,486.49
  4. Step 4: Simplify right side
    11,419.39x = 110,950,013.91
  5. Step 5: Solve for x
    x = 110,950,013.91/11,419.39
  6. Step 6: Final answer
    x = 9,715.93

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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.