Home / 18,090.12-27,129.66-10,692.54

Finding the Fourth Proportional to 18,090.12, 27,129.66 and 10,692.54

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Solution

The fourth proportional to 18,090.12, 27,129.66 and 10,692.54 is: 16,035.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.12 : 27,129.66 = 10,692.54 : x
  2. Step 2: Convert to fraction form
    18,090.12/27,129.66 = 10,692.54/x
  3. Step 3: Cross multiply
    18,090.12x = 27,129.66 × 10,692.54
  4. Step 4: Simplify right side
    18,090.12x = 290,084,974.74
  5. Step 5: Solve for x
    x = 290,084,974.74/18,090.12
  6. Step 6: Final answer
    x = 16,035.55

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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.