Home / 13,932.14-20,874.67-6,902.78

Finding the Fourth Proportional to 13,932.14, 20,874.67 and 6,902.78

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Solution

The fourth proportional to 13,932.14, 20,874.67 and 6,902.78 is: 10,342.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.14 : 20,874.67 = 6,902.78 : x
  2. Step 2: Convert to fraction form
    13,932.14/20,874.67 = 6,902.78/x
  3. Step 3: Cross multiply
    13,932.14x = 20,874.67 × 6,902.78
  4. Step 4: Simplify right side
    13,932.14x = 144,093,254.58
  5. Step 5: Solve for x
    x = 144,093,254.58/13,932.14
  6. Step 6: Final answer
    x = 10,342.51

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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.