Home / 14,495.20-20,012.96-11,131.97

Finding the Fourth Proportional to 14,495.20, 20,012.96 and 11,131.97

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Solution

The fourth proportional to 14,495.20, 20,012.96 and 11,131.97 is: 15,369.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,495.20 : 20,012.96 = 11,131.97 : x
  2. Step 2: Convert to fraction form
    14,495.20/20,012.96 = 11,131.97/x
  3. Step 3: Cross multiply
    14,495.20x = 20,012.96 × 11,131.97
  4. Step 4: Simplify right side
    14,495.20x = 222,783,748.19
  5. Step 5: Solve for x
    x = 222,783,748.19/14,495.20
  6. Step 6: Final answer
    x = 15,369.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.