Home / 14,080.20-19,430.16-8,112.12

Finding the Fourth Proportional to 14,080.20, 19,430.16 and 8,112.12

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Solution

The fourth proportional to 14,080.20, 19,430.16 and 8,112.12 is: 11,194.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,080.20 : 19,430.16 = 8,112.12 : x
  2. Step 2: Convert to fraction form
    14,080.20/19,430.16 = 8,112.12/x
  3. Step 3: Cross multiply
    14,080.20x = 19,430.16 × 8,112.12
  4. Step 4: Simplify right side
    14,080.20x = 157,619,789.54
  5. Step 5: Solve for x
    x = 157,619,789.54/14,080.20
  6. Step 6: Final answer
    x = 11,194.43

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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.