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Finding the Fourth Proportional to 18,800.00, 25,939.42 and 10,416.50

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Solution

The fourth proportional to 18,800.00, 25,939.42 and 10,416.50 is: 14,372.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800.00 : 25,939.42 = 10,416.50 : x
  2. Step 2: Convert to fraction form
    18,800.00/25,939.42 = 10,416.50/x
  3. Step 3: Cross multiply
    18,800.00x = 25,939.42 × 10,416.50
  4. Step 4: Simplify right side
    18,800.00x = 270,197,838.73
  5. Step 5: Solve for x
    x = 270,197,838.73/18,800.00
  6. Step 6: Final answer
    x = 14,372.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.