Home / 18,211.14-27,300.42-7,115.22

Finding the Fourth Proportional to 18,211.14, 27,300.42 and 7,115.22

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Solution

The fourth proportional to 18,211.14, 27,300.42 and 7,115.22 is: 10,666.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.14 : 27,300.42 = 7,115.22 : x
  2. Step 2: Convert to fraction form
    18,211.14/27,300.42 = 7,115.22/x
  3. Step 3: Cross multiply
    18,211.14x = 27,300.42 × 7,115.22
  4. Step 4: Simplify right side
    18,211.14x = 194,248,494.39
  5. Step 5: Solve for x
    x = 194,248,494.39/18,211.14
  6. Step 6: Final answer
    x = 10,666.47

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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.