Home / 16,912.60-25,391.70-9,899.80

Finding the Fourth Proportional to 16,912.60, 25,391.70 and 9,899.80

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Solution

The fourth proportional to 16,912.60, 25,391.70 and 9,899.80 is: 14,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.60 : 25,391.70 = 9,899.80 : x
  2. Step 2: Convert to fraction form
    16,912.60/25,391.70 = 9,899.80/x
  3. Step 3: Cross multiply
    16,912.60x = 25,391.70 × 9,899.80
  4. Step 4: Simplify right side
    16,912.60x = 251,372,751.66
  5. Step 5: Solve for x
    x = 251,372,751.66/16,912.60
  6. Step 6: Final answer
    x = 14,863.05

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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.