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Finding the Fourth Proportional to 16,754.70, 25,110.45 and 12,839.70

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Solution

The fourth proportional to 16,754.70, 25,110.45 and 12,839.70 is: 19,243.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,754.70 : 25,110.45 = 12,839.70 : x
  2. Step 2: Convert to fraction form
    16,754.70/25,110.45 = 12,839.70/x
  3. Step 3: Cross multiply
    16,754.70x = 25,110.45 × 12,839.70
  4. Step 4: Simplify right side
    16,754.70x = 322,410,644.87
  5. Step 5: Solve for x
    x = 322,410,644.87/16,754.70
  6. Step 6: Final answer
    x = 19,243.00

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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.