Home / 14,388.13-19,855.97-8,101.09

Finding the Fourth Proportional to 14,388.13, 19,855.97 and 8,101.09

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Solution

The fourth proportional to 14,388.13, 19,855.97 and 8,101.09 is: 11,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.13 : 19,855.97 = 8,101.09 : x
  2. Step 2: Convert to fraction form
    14,388.13/19,855.97 = 8,101.09/x
  3. Step 3: Cross multiply
    14,388.13x = 19,855.97 × 8,101.09
  4. Step 4: Simplify right side
    14,388.13x = 160,855,000.01
  5. Step 5: Solve for x
    x = 160,855,000.01/14,388.13
  6. Step 6: Final answer
    x = 11,179.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.