Home / 19,864.83-29,809.80-11,105.49

Finding the Fourth Proportional to 19,864.83, 29,809.80 and 11,105.49

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Solution

The fourth proportional to 19,864.83, 29,809.80 and 11,105.49 is: 16,665.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.83 : 29,809.80 = 11,105.49 : x
  2. Step 2: Convert to fraction form
    19,864.83/29,809.80 = 11,105.49/x
  3. Step 3: Cross multiply
    19,864.83x = 29,809.80 × 11,105.49
  4. Step 4: Simplify right side
    19,864.83x = 331,052,435.80
  5. Step 5: Solve for x
    x = 331,052,435.80/19,864.83
  6. Step 6: Final answer
    x = 16,665.25

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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.