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Finding the Fourth Proportional to 17,486.78, 26,241.12 and 11,647.49

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Solution

The fourth proportional to 17,486.78, 26,241.12 and 11,647.49 is: 17,478.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,486.78 : 26,241.12 = 11,647.49 : x
  2. Step 2: Convert to fraction form
    17,486.78/26,241.12 = 11,647.49/x
  3. Step 3: Cross multiply
    17,486.78x = 26,241.12 × 11,647.49
  4. Step 4: Simplify right side
    17,486.78x = 305,643,051.58
  5. Step 5: Solve for x
    x = 305,643,051.58/17,486.78
  6. Step 6: Final answer
    x = 17,478.53

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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.