Home / 18,147.42-27,221.40-5,666.94

Finding the Fourth Proportional to 18,147.42, 27,221.40 and 5,666.94

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Solution

The fourth proportional to 18,147.42, 27,221.40 and 5,666.94 is: 8,500.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.42 : 27,221.40 = 5,666.94 : x
  2. Step 2: Convert to fraction form
    18,147.42/27,221.40 = 5,666.94/x
  3. Step 3: Cross multiply
    18,147.42x = 27,221.40 × 5,666.94
  4. Step 4: Simplify right side
    18,147.42x = 154,262,040.52
  5. Step 5: Solve for x
    x = 154,262,040.52/18,147.42
  6. Step 6: Final answer
    x = 8,500.49

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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.