Home / 18,404.85-27,603.79-5,074.55

Finding the Fourth Proportional to 18,404.85, 27,603.79 and 5,074.55

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Solution

The fourth proportional to 18,404.85, 27,603.79 and 5,074.55 is: 7,610.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.85 : 27,603.79 = 5,074.55 : x
  2. Step 2: Convert to fraction form
    18,404.85/27,603.79 = 5,074.55/x
  3. Step 3: Cross multiply
    18,404.85x = 27,603.79 × 5,074.55
  4. Step 4: Simplify right side
    18,404.85x = 140,076,871.10
  5. Step 5: Solve for x
    x = 140,076,871.10/18,404.85
  6. Step 6: Final answer
    x = 7,610.87

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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.