Home / 16,872.64-25,311.38-5,186.84

Finding the Fourth Proportional to 16,872.64, 25,311.38 and 5,186.84

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Solution

The fourth proportional to 16,872.64, 25,311.38 and 5,186.84 is: 7,781.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872.64 : 25,311.38 = 5,186.84 : x
  2. Step 2: Convert to fraction form
    16,872.64/25,311.38 = 5,186.84/x
  3. Step 3: Cross multiply
    16,872.64x = 25,311.38 × 5,186.84
  4. Step 4: Simplify right side
    16,872.64x = 131,286,078.24
  5. Step 5: Solve for x
    x = 131,286,078.24/16,872.64
  6. Step 6: Final answer
    x = 7,781.00

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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.