Home / 13,536.78-20,308.41-6,856.62

Finding the Fourth Proportional to 13,536.78, 20,308.41 and 6,856.62

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Solution

The fourth proportional to 13,536.78, 20,308.41 and 6,856.62 is: 10,286.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.78 : 20,308.41 = 6,856.62 : x
  2. Step 2: Convert to fraction form
    13,536.78/20,308.41 = 6,856.62/x
  3. Step 3: Cross multiply
    13,536.78x = 20,308.41 × 6,856.62
  4. Step 4: Simplify right side
    13,536.78x = 139,247,050.17
  5. Step 5: Solve for x
    x = 139,247,050.17/13,536.78
  6. Step 6: Final answer
    x = 10,286.57

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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.