Home / 18,286.74-27,403.61-7,742.21

Finding the Fourth Proportional to 18,286.74, 27,403.61 and 7,742.21

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Solution

The fourth proportional to 18,286.74, 27,403.61 and 7,742.21 is: 11,602.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.74 : 27,403.61 = 7,742.21 : x
  2. Step 2: Convert to fraction form
    18,286.74/27,403.61 = 7,742.21/x
  3. Step 3: Cross multiply
    18,286.74x = 27,403.61 × 7,742.21
  4. Step 4: Simplify right side
    18,286.74x = 212,164,327.65
  5. Step 5: Solve for x
    x = 212,164,327.65/18,286.74
  6. Step 6: Final answer
    x = 11,602.09

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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.