Home / 13,199.28-19,801.11-4,879.32

Finding the Fourth Proportional to 13,199.28, 19,801.11 and 4,879.32

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Solution

The fourth proportional to 13,199.28, 19,801.11 and 4,879.32 is: 7,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.28 : 19,801.11 = 4,879.32 : x
  2. Step 2: Convert to fraction form
    13,199.28/19,801.11 = 4,879.32/x
  3. Step 3: Cross multiply
    13,199.28x = 19,801.11 × 4,879.32
  4. Step 4: Simplify right side
    13,199.28x = 96,615,952.05
  5. Step 5: Solve for x
    x = 96,615,952.05/13,199.28
  6. Step 6: Final answer
    x = 7,319.79

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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.