Home / 16,900.20-25,353.18-8,579.88

Finding the Fourth Proportional to 16,900.20, 25,353.18 and 8,579.88

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Solution

The fourth proportional to 16,900.20, 25,353.18 and 8,579.88 is: 12,871.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,900.20 : 25,353.18 = 8,579.88 : x
  2. Step 2: Convert to fraction form
    16,900.20/25,353.18 = 8,579.88/x
  3. Step 3: Cross multiply
    16,900.20x = 25,353.18 × 8,579.88
  4. Step 4: Simplify right side
    16,900.20x = 217,527,242.02
  5. Step 5: Solve for x
    x = 217,527,242.02/16,900.20
  6. Step 6: Final answer
    x = 12,871.28

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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.