Home / 18,561.68-27,805.40-11,162.10

Finding the Fourth Proportional to 18,561.68, 27,805.40 and 11,162.10

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Solution

The fourth proportional to 18,561.68, 27,805.40 and 11,162.10 is: 16,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,561.68 : 27,805.40 = 11,162.10 : x
  2. Step 2: Convert to fraction form
    18,561.68/27,805.40 = 11,162.10/x
  3. Step 3: Cross multiply
    18,561.68x = 27,805.40 × 11,162.10
  4. Step 4: Simplify right side
    18,561.68x = 310,366,655.34
  5. Step 5: Solve for x
    x = 310,366,655.34/18,561.68
  6. Step 6: Final answer
    x = 16,720.83

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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.