Home / 13,226.08-19,821.08-6,656.78

Finding the Fourth Proportional to 13,226.08, 19,821.08 and 6,656.78

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Solution

The fourth proportional to 13,226.08, 19,821.08 and 6,656.78 is: 9,976.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.08 : 19,821.08 = 6,656.78 : x
  2. Step 2: Convert to fraction form
    13,226.08/19,821.08 = 6,656.78/x
  3. Step 3: Cross multiply
    13,226.08x = 19,821.08 × 6,656.78
  4. Step 4: Simplify right side
    13,226.08x = 131,944,568.92
  5. Step 5: Solve for x
    x = 131,944,568.92/13,226.08
  6. Step 6: Final answer
    x = 9,976.09

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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.