Home / 13,933.12-19,229.52-8,628.16

Finding the Fourth Proportional to 13,933.12, 19,229.52 and 8,628.16

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Solution

The fourth proportional to 13,933.12, 19,229.52 and 8,628.16 is: 11,907.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.12 : 19,229.52 = 8,628.16 : x
  2. Step 2: Convert to fraction form
    13,933.12/19,229.52 = 8,628.16/x
  3. Step 3: Cross multiply
    13,933.12x = 19,229.52 × 8,628.16
  4. Step 4: Simplify right side
    13,933.12x = 165,915,375.28
  5. Step 5: Solve for x
    x = 165,915,375.28/13,933.12
  6. Step 6: Final answer
    x = 11,907.98

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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.