Home / 11,453.62-17,178.40-5,212.18

Finding the Fourth Proportional to 11,453.62, 17,178.40 and 5,212.18

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Solution

The fourth proportional to 11,453.62, 17,178.40 and 5,212.18 is: 7,817.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,453.62 : 17,178.40 = 5,212.18 : x
  2. Step 2: Convert to fraction form
    11,453.62/17,178.40 = 5,212.18/x
  3. Step 3: Cross multiply
    11,453.62x = 17,178.40 × 5,212.18
  4. Step 4: Simplify right side
    11,453.62x = 89,536,912.91
  5. Step 5: Solve for x
    x = 89,536,912.91/11,453.62
  6. Step 6: Final answer
    x = 7,817.35

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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.