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Finding the Fourth Proportional to 17,647.97, 26,448.58 and 12,945.97

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Solution

The fourth proportional to 17,647.97, 26,448.58 and 12,945.97 is: 19,401.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,647.97 : 26,448.58 = 12,945.97 : x
  2. Step 2: Convert to fraction form
    17,647.97/26,448.58 = 12,945.97/x
  3. Step 3: Cross multiply
    17,647.97x = 26,448.58 × 12,945.97
  4. Step 4: Simplify right side
    17,647.97x = 342,402,523.22
  5. Step 5: Solve for x
    x = 342,402,523.22/17,647.97
  6. Step 6: Final answer
    x = 19,401.81

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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.