Home / 18,997.45-28,496.17-8,464.75

Finding the Fourth Proportional to 18,997.45, 28,496.17 and 8,464.75

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Solution

The fourth proportional to 18,997.45, 28,496.17 and 8,464.75 is: 12,697.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.45 : 28,496.17 = 8,464.75 : x
  2. Step 2: Convert to fraction form
    18,997.45/28,496.17 = 8,464.75/x
  3. Step 3: Cross multiply
    18,997.45x = 28,496.17 × 8,464.75
  4. Step 4: Simplify right side
    18,997.45x = 241,212,955.01
  5. Step 5: Solve for x
    x = 241,212,955.01/18,997.45
  6. Step 6: Final answer
    x = 12,697.12

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Similar ratio
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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.