Home / 8,987.36-13,480.12-2,747.42

Finding the Fourth Proportional to 8,987.36, 13,480.12 and 2,747.42

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Solution

The fourth proportional to 8,987.36, 13,480.12 and 2,747.42 is: 4,120.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.36 : 13,480.12 = 2,747.42 : x
  2. Step 2: Convert to fraction form
    8,987.36/13,480.12 = 2,747.42/x
  3. Step 3: Cross multiply
    8,987.36x = 13,480.12 × 2,747.42
  4. Step 4: Simplify right side
    8,987.36x = 37,035,537.87
  5. Step 5: Solve for x
    x = 37,035,537.87/8,987.36
  6. Step 6: Final answer
    x = 4,120.85

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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.