Home / 12,131.27-16,740.78-6,825.77

Finding the Fourth Proportional to 12,131.27, 16,740.78 and 6,825.77

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Solution

The fourth proportional to 12,131.27, 16,740.78 and 6,825.77 is: 9,419.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131.27 : 16,740.78 = 6,825.77 : x
  2. Step 2: Convert to fraction form
    12,131.27/16,740.78 = 6,825.77/x
  3. Step 3: Cross multiply
    12,131.27x = 16,740.78 × 6,825.77
  4. Step 4: Simplify right side
    12,131.27x = 114,268,713.90
  5. Step 5: Solve for x
    x = 114,268,713.90/12,131.27
  6. Step 6: Final answer
    x = 9,419.35

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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.