Home / 13,522.28-20,329.11-10,921.91

Finding the Fourth Proportional to 13,522.28, 20,329.11 and 10,921.91

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Solution

The fourth proportional to 13,522.28, 20,329.11 and 10,921.91 is: 16,419.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.28 : 20,329.11 = 10,921.91 : x
  2. Step 2: Convert to fraction form
    13,522.28/20,329.11 = 10,921.91/x
  3. Step 3: Cross multiply
    13,522.28x = 20,329.11 × 10,921.91
  4. Step 4: Simplify right side
    13,522.28x = 222,032,608.15
  5. Step 5: Solve for x
    x = 222,032,608.15/13,522.28
  6. Step 6: Final answer
    x = 16,419.77

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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.