Home / 18,291.14-27,438.33-5,143.62

Finding the Fourth Proportional to 18,291.14, 27,438.33 and 5,143.62

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Solution

The fourth proportional to 18,291.14, 27,438.33 and 5,143.62 is: 7,715.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.14 : 27,438.33 = 5,143.62 : x
  2. Step 2: Convert to fraction form
    18,291.14/27,438.33 = 5,143.62/x
  3. Step 3: Cross multiply
    18,291.14x = 27,438.33 × 5,143.62
  4. Step 4: Simplify right side
    18,291.14x = 141,132,342.95
  5. Step 5: Solve for x
    x = 141,132,342.95/18,291.14
  6. Step 6: Final answer
    x = 7,715.89

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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.