Home / 11,987.87-17,984.23-4,202.15

Finding the Fourth Proportional to 11,987.87, 17,984.23 and 4,202.15

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Solution

The fourth proportional to 11,987.87, 17,984.23 and 4,202.15 is: 6,304.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.87 : 17,984.23 = 4,202.15 : x
  2. Step 2: Convert to fraction form
    11,987.87/17,984.23 = 4,202.15/x
  3. Step 3: Cross multiply
    11,987.87x = 17,984.23 × 4,202.15
  4. Step 4: Simplify right side
    11,987.87x = 75,572,331.67
  5. Step 5: Solve for x
    x = 75,572,331.67/11,987.87
  6. Step 6: Final answer
    x = 6,304.07

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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.