Home / 18,218.72-27,341.40-11,660.96

Finding the Fourth Proportional to 18,218.72, 27,341.40 and 11,660.96

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Solution

The fourth proportional to 18,218.72, 27,341.40 and 11,660.96 is: 17,499.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.72 : 27,341.40 = 11,660.96 : x
  2. Step 2: Convert to fraction form
    18,218.72/27,341.40 = 11,660.96/x
  3. Step 3: Cross multiply
    18,218.72x = 27,341.40 × 11,660.96
  4. Step 4: Simplify right side
    18,218.72x = 318,826,971.74
  5. Step 5: Solve for x
    x = 318,826,971.74/18,218.72
  6. Step 6: Final answer
    x = 17,499.97

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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.