Home / 13,761.40-18,992.58-7,793.32

Finding the Fourth Proportional to 13,761.40, 18,992.58 and 7,793.32

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Solution

The fourth proportional to 13,761.40, 18,992.58 and 7,793.32 is: 10,755.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.40 : 18,992.58 = 7,793.32 : x
  2. Step 2: Convert to fraction form
    13,761.40/18,992.58 = 7,793.32/x
  3. Step 3: Cross multiply
    13,761.40x = 18,992.58 × 7,793.32
  4. Step 4: Simplify right side
    13,761.40x = 148,015,253.57
  5. Step 5: Solve for x
    x = 148,015,253.57/13,761.40
  6. Step 6: Final answer
    x = 10,755.83

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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.