Home / 18,080.40-27,108.45-8,214.60

Finding the Fourth Proportional to 18,080.40, 27,108.45 and 8,214.60

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Solution

The fourth proportional to 18,080.40, 27,108.45 and 8,214.60 is: 12,316.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,080.40 : 27,108.45 = 8,214.60 : x
  2. Step 2: Convert to fraction form
    18,080.40/27,108.45 = 8,214.60/x
  3. Step 3: Cross multiply
    18,080.40x = 27,108.45 × 8,214.60
  4. Step 4: Simplify right side
    18,080.40x = 222,685,073.37
  5. Step 5: Solve for x
    x = 222,685,073.37/18,080.40
  6. Step 6: Final answer
    x = 12,316.38

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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.