Home / 18,090.60-27,139.77-5,610.35

Finding the Fourth Proportional to 18,090.60, 27,139.77 and 5,610.35

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Solution

The fourth proportional to 18,090.60, 27,139.77 and 5,610.35 is: 8,416.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.60 : 27,139.77 = 5,610.35 : x
  2. Step 2: Convert to fraction form
    18,090.60/27,139.77 = 5,610.35/x
  3. Step 3: Cross multiply
    18,090.60x = 27,139.77 × 5,610.35
  4. Step 4: Simplify right side
    18,090.60x = 152,263,608.62
  5. Step 5: Solve for x
    x = 152,263,608.62/18,090.60
  6. Step 6: Final answer
    x = 8,416.73

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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.