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Finding the Fourth Proportional to 17,956.80, 26,928 and 10,563.20

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Solution

The fourth proportional to 17,956.80, 26,928 and 10,563.20 is: 15,840.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,956.80 : 26,928 = 10,563.20 : x
  2. Step 2: Convert to fraction form
    17,956.80/26,928 = 10,563.20/x
  3. Step 3: Cross multiply
    17,956.80x = 26,928 × 10,563.20
  4. Step 4: Simplify right side
    17,956.80x = 284,445,849.60
  5. Step 5: Solve for x
    x = 284,445,849.60/17,956.80
  6. Step 6: Final answer
    x = 15,840.56

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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.