Home / 8,311.38-12,468.99-3,695.70

Finding the Fourth Proportional to 8,311.38, 12,468.99 and 3,695.70

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Solution

The fourth proportional to 8,311.38, 12,468.99 and 3,695.70 is: 5,544.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.38 : 12,468.99 = 3,695.70 : x
  2. Step 2: Convert to fraction form
    8,311.38/12,468.99 = 3,695.70/x
  3. Step 3: Cross multiply
    8,311.38x = 12,468.99 × 3,695.70
  4. Step 4: Simplify right side
    8,311.38x = 46,081,646.34
  5. Step 5: Solve for x
    x = 46,081,646.34/8,311.38
  6. Step 6: Final answer
    x = 5,544.40

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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.