Home / 13,756.22-18,991.08-10,372.30

Finding the Fourth Proportional to 13,756.22, 18,991.08 and 10,372.30

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Solution

The fourth proportional to 13,756.22, 18,991.08 and 10,372.30 is: 14,319.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.22 : 18,991.08 = 10,372.30 : x
  2. Step 2: Convert to fraction form
    13,756.22/18,991.08 = 10,372.30/x
  3. Step 3: Cross multiply
    13,756.22x = 18,991.08 × 10,372.30
  4. Step 4: Simplify right side
    13,756.22x = 196,981,179.08
  5. Step 5: Solve for x
    x = 196,981,179.08/13,756.22
  6. Step 6: Final answer
    x = 14,319.43

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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.