Home / 13,922.64-20,882.97-6,528.78

Finding the Fourth Proportional to 13,922.64, 20,882.97 and 6,528.78

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Solution

The fourth proportional to 13,922.64, 20,882.97 and 6,528.78 is: 9,792.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.64 : 20,882.97 = 6,528.78 : x
  2. Step 2: Convert to fraction form
    13,922.64/20,882.97 = 6,528.78/x
  3. Step 3: Cross multiply
    13,922.64x = 20,882.97 × 6,528.78
  4. Step 4: Simplify right side
    13,922.64x = 136,340,316.88
  5. Step 5: Solve for x
    x = 136,340,316.88/13,922.64
  6. Step 6: Final answer
    x = 9,792.71

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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.