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Finding the Fourth Proportional to 26,463, 39,694.80 and 8,693.40

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Solution

The fourth proportional to 26,463, 39,694.80 and 8,693.40 is: 13,040.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,463 : 39,694.80 = 8,693.40 : x
  2. Step 2: Convert to fraction form
    26,463/39,694.80 = 8,693.40/x
  3. Step 3: Cross multiply
    26,463x = 39,694.80 × 8,693.40
  4. Step 4: Simplify right side
    26,463x = 345,082,774.32
  5. Step 5: Solve for x
    x = 345,082,774.32/26,463
  6. Step 6: Final answer
    x = 13,040.20

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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.