Home / 13,252.38-19,879.20-7,404.54

Finding the Fourth Proportional to 13,252.38, 19,879.20 and 7,404.54

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Solution

The fourth proportional to 13,252.38, 19,879.20 and 7,404.54 is: 11,107.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252.38 : 19,879.20 = 7,404.54 : x
  2. Step 2: Convert to fraction form
    13,252.38/19,879.20 = 7,404.54/x
  3. Step 3: Cross multiply
    13,252.38x = 19,879.20 × 7,404.54
  4. Step 4: Simplify right side
    13,252.38x = 147,196,331.57
  5. Step 5: Solve for x
    x = 147,196,331.57/13,252.38
  6. Step 6: Final answer
    x = 11,107.16

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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.