Home / 11,987.44-17,977.62-4,591.32

Finding the Fourth Proportional to 11,987.44, 17,977.62 and 4,591.32

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Solution

The fourth proportional to 11,987.44, 17,977.62 and 4,591.32 is: 6,885.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.44 : 17,977.62 = 4,591.32 : x
  2. Step 2: Convert to fraction form
    11,987.44/17,977.62 = 4,591.32/x
  3. Step 3: Cross multiply
    11,987.44x = 17,977.62 × 4,591.32
  4. Step 4: Simplify right side
    11,987.44x = 82,541,006.26
  5. Step 5: Solve for x
    x = 82,541,006.26/11,987.44
  6. Step 6: Final answer
    x = 6,885.62

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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.