Home / 18,492.20-27,716.70-9,722.60

Finding the Fourth Proportional to 18,492.20, 27,716.70 and 9,722.60

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Solution

The fourth proportional to 18,492.20, 27,716.70 and 9,722.60 is: 14,572.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.20 : 27,716.70 = 9,722.60 : x
  2. Step 2: Convert to fraction form
    18,492.20/27,716.70 = 9,722.60/x
  3. Step 3: Cross multiply
    18,492.20x = 27,716.70 × 9,722.60
  4. Step 4: Simplify right side
    18,492.20x = 269,478,387.42
  5. Step 5: Solve for x
    x = 269,478,387.42/18,492.20
  6. Step 6: Final answer
    x = 14,572.54

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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.