Home / 12,131.73-16,740.45-6,826.46

Finding the Fourth Proportional to 12,131.73, 16,740.45 and 6,826.46

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Solution

The fourth proportional to 12,131.73, 16,740.45 and 6,826.46 is: 9,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131.73 : 16,740.45 = 6,826.46 : x
  2. Step 2: Convert to fraction form
    12,131.73/16,740.45 = 6,826.46/x
  3. Step 3: Cross multiply
    12,131.73x = 16,740.45 × 6,826.46
  4. Step 4: Simplify right side
    12,131.73x = 114,277,928.60
  5. Step 5: Solve for x
    x = 114,277,928.60/12,131.73
  6. Step 6: Final answer
    x = 9,419.76

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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.