Home / 18,144.60-27,219.36-5,665.50

Finding the Fourth Proportional to 18,144.60, 27,219.36 and 5,665.50

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Solution

The fourth proportional to 18,144.60, 27,219.36 and 5,665.50 is: 8,499.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.60 : 27,219.36 = 5,665.50 : x
  2. Step 2: Convert to fraction form
    18,144.60/27,219.36 = 5,665.50/x
  3. Step 3: Cross multiply
    18,144.60x = 27,219.36 × 5,665.50
  4. Step 4: Simplify right side
    18,144.60x = 154,211,284.08
  5. Step 5: Solve for x
    x = 154,211,284.08/18,144.60
  6. Step 6: Final answer
    x = 8,499.02

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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.