Home / 13,364.91-20,021.85-8,101.53

Finding the Fourth Proportional to 13,364.91, 20,021.85 and 8,101.53

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Solution

The fourth proportional to 13,364.91, 20,021.85 and 8,101.53 is: 12,136.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.91 : 20,021.85 = 8,101.53 : x
  2. Step 2: Convert to fraction form
    13,364.91/20,021.85 = 8,101.53/x
  3. Step 3: Cross multiply
    13,364.91x = 20,021.85 × 8,101.53
  4. Step 4: Simplify right side
    13,364.91x = 162,207,618.43
  5. Step 5: Solve for x
    x = 162,207,618.43/13,364.91
  6. Step 6: Final answer
    x = 12,136.83

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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.