Home / 13,553.28-20,329.92-5,756.64

Finding the Fourth Proportional to 13,553.28, 20,329.92 and 5,756.64

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Solution

The fourth proportional to 13,553.28, 20,329.92 and 5,756.64 is: 8,634.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.28 : 20,329.92 = 5,756.64 : x
  2. Step 2: Convert to fraction form
    13,553.28/20,329.92 = 5,756.64/x
  3. Step 3: Cross multiply
    13,553.28x = 20,329.92 × 5,756.64
  4. Step 4: Simplify right side
    13,553.28x = 117,032,030.67
  5. Step 5: Solve for x
    x = 117,032,030.67/13,553.28
  6. Step 6: Final answer
    x = 8,634.96

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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.