Home / 13,266.72-19,879.92-6,331.68

Finding the Fourth Proportional to 13,266.72, 19,879.92 and 6,331.68

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Solution

The fourth proportional to 13,266.72, 19,879.92 and 6,331.68 is: 9,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.72 : 19,879.92 = 6,331.68 : x
  2. Step 2: Convert to fraction form
    13,266.72/19,879.92 = 6,331.68/x
  3. Step 3: Cross multiply
    13,266.72x = 19,879.92 × 6,331.68
  4. Step 4: Simplify right side
    13,266.72x = 125,873,291.87
  5. Step 5: Solve for x
    x = 125,873,291.87/13,266.72
  6. Step 6: Final answer
    x = 9,487.90

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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.