Home / 13,914.72-20,874.96-6,122.88

Finding the Fourth Proportional to 13,914.72, 20,874.96 and 6,122.88

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Solution

The fourth proportional to 13,914.72, 20,874.96 and 6,122.88 is: 9,185.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.72 : 20,874.96 = 6,122.88 : x
  2. Step 2: Convert to fraction form
    13,914.72/20,874.96 = 6,122.88/x
  3. Step 3: Cross multiply
    13,914.72x = 20,874.96 × 6,122.88
  4. Step 4: Simplify right side
    13,914.72x = 127,814,875.08
  5. Step 5: Solve for x
    x = 127,814,875.08/13,914.72
  6. Step 6: Final answer
    x = 9,185.59

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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.