Home / 18,172.40-27,219.72-11,225.84

Finding the Fourth Proportional to 18,172.40, 27,219.72 and 11,225.84

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Solution

The fourth proportional to 18,172.40, 27,219.72 and 11,225.84 is: 16,814.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.40 : 27,219.72 = 11,225.84 : x
  2. Step 2: Convert to fraction form
    18,172.40/27,219.72 = 11,225.84/x
  3. Step 3: Cross multiply
    18,172.40x = 27,219.72 × 11,225.84
  4. Step 4: Simplify right side
    18,172.40x = 305,564,221.56
  5. Step 5: Solve for x
    x = 305,564,221.56/18,172.40
  6. Step 6: Final answer
    x = 16,814.74

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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.