Home / 18,090.36-27,135.78-9,320.76

Finding the Fourth Proportional to 18,090.36, 27,135.78 and 9,320.76

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Solution

The fourth proportional to 18,090.36, 27,135.78 and 9,320.76 is: 13,981.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.36 : 27,135.78 = 9,320.76 : x
  2. Step 2: Convert to fraction form
    18,090.36/27,135.78 = 9,320.76/x
  3. Step 3: Cross multiply
    18,090.36x = 27,135.78 × 9,320.76
  4. Step 4: Simplify right side
    18,090.36x = 252,926,092.79
  5. Step 5: Solve for x
    x = 252,926,092.79/18,090.36
  6. Step 6: Final answer
    x = 13,981.26

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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.