Home / 16,885.64-25,306.44-12,221.36

Finding the Fourth Proportional to 16,885.64, 25,306.44 and 12,221.36

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Solution

The fourth proportional to 16,885.64, 25,306.44 and 12,221.36 is: 18,316.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,885.64 : 25,306.44 = 12,221.36 : x
  2. Step 2: Convert to fraction form
    16,885.64/25,306.44 = 12,221.36/x
  3. Step 3: Cross multiply
    16,885.64x = 25,306.44 × 12,221.36
  4. Step 4: Simplify right side
    16,885.64x = 309,279,113.56
  5. Step 5: Solve for x
    x = 309,279,113.56/16,885.64
  6. Step 6: Final answer
    x = 18,316.10

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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.