Home / 11,987.24-17,990.46-5,414.00

Finding the Fourth Proportional to 11,987.24, 17,990.46 and 5,414.00

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Solution

The fourth proportional to 11,987.24, 17,990.46 and 5,414.00 is: 8,125.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.24 : 17,990.46 = 5,414.00 : x
  2. Step 2: Convert to fraction form
    11,987.24/17,990.46 = 5,414.00/x
  3. Step 3: Cross multiply
    11,987.24x = 17,990.46 × 5,414.00
  4. Step 4: Simplify right side
    11,987.24x = 97,400,260.49
  5. Step 5: Solve for x
    x = 97,400,260.49/11,987.24
  6. Step 6: Final answer
    x = 8,125.33

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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.