Home / 14,408.38-19,884.17-8,120.75

Finding the Fourth Proportional to 14,408.38, 19,884.17 and 8,120.75

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Solution

The fourth proportional to 14,408.38, 19,884.17 and 8,120.75 is: 11,206.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,408.38 : 19,884.17 = 8,120.75 : x
  2. Step 2: Convert to fraction form
    14,408.38/19,884.17 = 8,120.75/x
  3. Step 3: Cross multiply
    14,408.38x = 19,884.17 × 8,120.75
  4. Step 4: Simplify right side
    14,408.38x = 161,474,332.92
  5. Step 5: Solve for x
    x = 161,474,332.92/14,408.38
  6. Step 6: Final answer
    x = 11,206.98

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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.