Home / 13,314.36-18,451.49-13,126.44

Finding the Fourth Proportional to 13,314.36, 18,451.49 and 13,126.44

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Solution

The fourth proportional to 13,314.36, 18,451.49 and 13,126.44 is: 18,191.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.36 : 18,451.49 = 13,126.44 : x
  2. Step 2: Convert to fraction form
    13,314.36/18,451.49 = 13,126.44/x
  3. Step 3: Cross multiply
    13,314.36x = 18,451.49 × 13,126.44
  4. Step 4: Simplify right side
    13,314.36x = 242,202,310.76
  5. Step 5: Solve for x
    x = 242,202,310.76/13,314.36
  6. Step 6: Final answer
    x = 18,191.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.