Home / 13,110.20-19,665.06-3,249.50

Finding the Fourth Proportional to 13,110.20, 19,665.06 and 3,249.50

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Solution

The fourth proportional to 13,110.20, 19,665.06 and 3,249.50 is: 4,874.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.20 : 19,665.06 = 3,249.50 : x
  2. Step 2: Convert to fraction form
    13,110.20/19,665.06 = 3,249.50/x
  3. Step 3: Cross multiply
    13,110.20x = 19,665.06 × 3,249.50
  4. Step 4: Simplify right side
    13,110.20x = 63,901,612.47
  5. Step 5: Solve for x
    x = 63,901,612.47/13,110.20
  6. Step 6: Final answer
    x = 4,874.19

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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.