Home / 18,311.44-25,270.72-10,758.20

Finding the Fourth Proportional to 18,311.44, 25,270.72 and 10,758.20

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Solution

The fourth proportional to 18,311.44, 25,270.72 and 10,758.20 is: 14,846.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.44 : 25,270.72 = 10,758.20 : x
  2. Step 2: Convert to fraction form
    18,311.44/25,270.72 = 10,758.20/x
  3. Step 3: Cross multiply
    18,311.44x = 25,270.72 × 10,758.20
  4. Step 4: Simplify right side
    18,311.44x = 271,867,459.90
  5. Step 5: Solve for x
    x = 271,867,459.90/18,311.44
  6. Step 6: Final answer
    x = 14,846.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.