Home / 13,776.33-20,656.72-6,371.62

Finding the Fourth Proportional to 13,776.33, 20,656.72 and 6,371.62

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Solution

The fourth proportional to 13,776.33, 20,656.72 and 6,371.62 is: 9,553.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,776.33 : 20,656.72 = 6,371.62 : x
  2. Step 2: Convert to fraction form
    13,776.33/20,656.72 = 6,371.62/x
  3. Step 3: Cross multiply
    13,776.33x = 20,656.72 × 6,371.62
  4. Step 4: Simplify right side
    13,776.33x = 131,616,770.29
  5. Step 5: Solve for x
    x = 131,616,770.29/13,776.33
  6. Step 6: Final answer
    x = 9,553.83

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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.