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Finding the Fourth Proportional to 26,661, 39,991.68 and 9,130.98

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Solution

The fourth proportional to 26,661, 39,991.68 and 9,130.98 is: 13,696.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,661 : 39,991.68 = 9,130.98 : x
  2. Step 2: Convert to fraction form
    26,661/39,991.68 = 9,130.98/x
  3. Step 3: Cross multiply
    26,661x = 39,991.68 × 9,130.98
  4. Step 4: Simplify right side
    26,661x = 365,163,230.25
  5. Step 5: Solve for x
    x = 365,163,230.25/26,661
  6. Step 6: Final answer
    x = 13,696.53

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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.