Home / 13,717.59-20,577.68-3,856.85

Finding the Fourth Proportional to 13,717.59, 20,577.68 and 3,856.85

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Solution

The fourth proportional to 13,717.59, 20,577.68 and 3,856.85 is: 5,785.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.59 : 20,577.68 = 3,856.85 : x
  2. Step 2: Convert to fraction form
    13,717.59/20,577.68 = 3,856.85/x
  3. Step 3: Cross multiply
    13,717.59x = 20,577.68 × 3,856.85
  4. Step 4: Simplify right side
    13,717.59x = 79,364,902.94
  5. Step 5: Solve for x
    x = 79,364,902.94/13,717.59
  6. Step 6: Final answer
    x = 5,785.63

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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.