Home / 11,986.32-17,987.64-4,195.06

Finding the Fourth Proportional to 11,986.32, 17,987.64 and 4,195.06

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Solution

The fourth proportional to 11,986.32, 17,987.64 and 4,195.06 is: 6,295.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.32 : 17,987.64 = 4,195.06 : x
  2. Step 2: Convert to fraction form
    11,986.32/17,987.64 = 4,195.06/x
  3. Step 3: Cross multiply
    11,986.32x = 17,987.64 × 4,195.06
  4. Step 4: Simplify right side
    11,986.32x = 75,459,229.06
  5. Step 5: Solve for x
    x = 75,459,229.06/11,986.32
  6. Step 6: Final answer
    x = 6,295.45

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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.