Home / 11,987.75-17,974.74-4,587.59

Finding the Fourth Proportional to 11,987.75, 17,974.74 and 4,587.59

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Solution

The fourth proportional to 11,987.75, 17,974.74 and 4,587.59 is: 6,878.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.75 : 17,974.74 = 4,587.59 : x
  2. Step 2: Convert to fraction form
    11,987.75/17,974.74 = 4,587.59/x
  3. Step 3: Cross multiply
    11,987.75x = 17,974.74 × 4,587.59
  4. Step 4: Simplify right side
    11,987.75x = 82,460,799.62
  5. Step 5: Solve for x
    x = 82,460,799.62/11,987.75
  6. Step 6: Final answer
    x = 6,878.75

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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.