Home / 13,956.68-20,931.78-5,195.72

Finding the Fourth Proportional to 13,956.68, 20,931.78 and 5,195.72

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Solution

The fourth proportional to 13,956.68, 20,931.78 and 5,195.72 is: 7,792.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956.68 : 20,931.78 = 5,195.72 : x
  2. Step 2: Convert to fraction form
    13,956.68/20,931.78 = 5,195.72/x
  3. Step 3: Cross multiply
    13,956.68x = 20,931.78 × 5,195.72
  4. Step 4: Simplify right side
    13,956.68x = 108,755,667.98
  5. Step 5: Solve for x
    x = 108,755,667.98/13,956.68
  6. Step 6: Final answer
    x = 7,792.37

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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.