Home / 16,899.20-25,346.40-5,213.60

Finding the Fourth Proportional to 16,899.20, 25,346.40 and 5,213.60

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Solution

The fourth proportional to 16,899.20, 25,346.40 and 5,213.60 is: 7,819.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,899.20 : 25,346.40 = 5,213.60 : x
  2. Step 2: Convert to fraction form
    16,899.20/25,346.40 = 5,213.60/x
  3. Step 3: Cross multiply
    16,899.20x = 25,346.40 × 5,213.60
  4. Step 4: Simplify right side
    16,899.20x = 132,145,991.04
  5. Step 5: Solve for x
    x = 132,145,991.04/16,899.20
  6. Step 6: Final answer
    x = 7,819.66

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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.