Home / 8,268.99-12,391.32-6,518.19

Finding the Fourth Proportional to 8,268.99, 12,391.32 and 6,518.19

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Solution

The fourth proportional to 8,268.99, 12,391.32 and 6,518.19 is: 9,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,268.99 : 12,391.32 = 6,518.19 : x
  2. Step 2: Convert to fraction form
    8,268.99/12,391.32 = 6,518.19/x
  3. Step 3: Cross multiply
    8,268.99x = 12,391.32 × 6,518.19
  4. Step 4: Simplify right side
    8,268.99x = 80,768,978.11
  5. Step 5: Solve for x
    x = 80,768,978.11/8,268.99
  6. Step 6: Final answer
    x = 9,767.70

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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.