Home / 16,906.20-25,359.30-9,907.80

Finding the Fourth Proportional to 16,906.20, 25,359.30 and 9,907.80

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Solution

The fourth proportional to 16,906.20, 25,359.30 and 9,907.80 is: 14,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,906.20 : 25,359.30 = 9,907.80 : x
  2. Step 2: Convert to fraction form
    16,906.20/25,359.30 = 9,907.80/x
  3. Step 3: Cross multiply
    16,906.20x = 25,359.30 × 9,907.80
  4. Step 4: Simplify right side
    16,906.20x = 251,254,872.54
  5. Step 5: Solve for x
    x = 251,254,872.54/16,906.20
  6. Step 6: Final answer
    x = 14,861.70

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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.