Home / 8,305.20-12,460.57-3,923.91

Finding the Fourth Proportional to 8,305.20, 12,460.57 and 3,923.91

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Solution

The fourth proportional to 8,305.20, 12,460.57 and 3,923.91 is: 5,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.20 : 12,460.57 = 3,923.91 : x
  2. Step 2: Convert to fraction form
    8,305.20/12,460.57 = 3,923.91/x
  3. Step 3: Cross multiply
    8,305.20x = 12,460.57 × 3,923.91
  4. Step 4: Simplify right side
    8,305.20x = 48,894,145.42
  5. Step 5: Solve for x
    x = 48,894,145.42/8,305.20
  6. Step 6: Final answer
    x = 5,887.17

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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.