Home / 18,447.48-27,670.50-5,299.80

Finding the Fourth Proportional to 18,447.48, 27,670.50 and 5,299.80

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Solution

The fourth proportional to 18,447.48, 27,670.50 and 5,299.80 is: 7,949.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.48 : 27,670.50 = 5,299.80 : x
  2. Step 2: Convert to fraction form
    18,447.48/27,670.50 = 5,299.80/x
  3. Step 3: Cross multiply
    18,447.48x = 27,670.50 × 5,299.80
  4. Step 4: Simplify right side
    18,447.48x = 146,648,115.90
  5. Step 5: Solve for x
    x = 146,648,115.90/18,447.48
  6. Step 6: Final answer
    x = 7,949.49

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Double scale
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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.