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Finding the Fourth Proportional to 26,401.43, 39,606 and 7,679.04

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Solution

The fourth proportional to 26,401.43, 39,606 and 7,679.04 is: 11,519.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,401.43 : 39,606 = 7,679.04 : x
  2. Step 2: Convert to fraction form
    26,401.43/39,606 = 7,679.04/x
  3. Step 3: Cross multiply
    26,401.43x = 39,606 × 7,679.04
  4. Step 4: Simplify right side
    26,401.43x = 304,136,058.24
  5. Step 5: Solve for x
    x = 304,136,058.24/26,401.43
  6. Step 6: Final answer
    x = 11,519.68

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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.