Home / 13,997.88-20,996.66-5,675.91

Finding the Fourth Proportional to 13,997.88, 20,996.66 and 5,675.91

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Solution

The fourth proportional to 13,997.88, 20,996.66 and 5,675.91 is: 8,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.88 : 20,996.66 = 5,675.91 : x
  2. Step 2: Convert to fraction form
    13,997.88/20,996.66 = 5,675.91/x
  3. Step 3: Cross multiply
    13,997.88x = 20,996.66 × 5,675.91
  4. Step 4: Simplify right side
    13,997.88x = 119,175,124.08
  5. Step 5: Solve for x
    x = 119,175,124.08/13,997.88
  6. Step 6: Final answer
    x = 8,513.80

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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.