Home / 13,736.50-20,602.91-3,876.57

Finding the Fourth Proportional to 13,736.50, 20,602.91 and 3,876.57

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Solution

The fourth proportional to 13,736.50, 20,602.91 and 3,876.57 is: 5,814.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.50 : 20,602.91 = 3,876.57 : x
  2. Step 2: Convert to fraction form
    13,736.50/20,602.91 = 3,876.57/x
  3. Step 3: Cross multiply
    13,736.50x = 20,602.91 × 3,876.57
  4. Step 4: Simplify right side
    13,736.50x = 79,868,603.44
  5. Step 5: Solve for x
    x = 79,868,603.44/13,736.50
  6. Step 6: Final answer
    x = 5,814.33

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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.