Home / 12,237.67-18,353.40-5,213.80

Finding the Fourth Proportional to 12,237.67, 18,353.40 and 5,213.80

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Solution

The fourth proportional to 12,237.67, 18,353.40 and 5,213.80 is: 7,819.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.67 : 18,353.40 = 5,213.80 : x
  2. Step 2: Convert to fraction form
    12,237.67/18,353.40 = 5,213.80/x
  3. Step 3: Cross multiply
    12,237.67x = 18,353.40 × 5,213.80
  4. Step 4: Simplify right side
    12,237.67x = 95,690,956.92
  5. Step 5: Solve for x
    x = 95,690,956.92/12,237.67
  6. Step 6: Final answer
    x = 7,819.38

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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.