Home / 8,165.21-11,268.11-6,117.49

Finding the Fourth Proportional to 8,165.21, 11,268.11 and 6,117.49

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Solution

The fourth proportional to 8,165.21, 11,268.11 and 6,117.49 is: 8,442.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,165.21 : 11,268.11 = 6,117.49 : x
  2. Step 2: Convert to fraction form
    8,165.21/11,268.11 = 6,117.49/x
  3. Step 3: Cross multiply
    8,165.21x = 11,268.11 × 6,117.49
  4. Step 4: Simplify right side
    8,165.21x = 68,932,550.24
  5. Step 5: Solve for x
    x = 68,932,550.24/8,165.21
  6. Step 6: Final answer
    x = 8,442.23

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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.