Home / 11,987.64-17,984.70-4,197.06

Finding the Fourth Proportional to 11,987.64, 17,984.70 and 4,197.06

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Solution

The fourth proportional to 11,987.64, 17,984.70 and 4,197.06 is: 6,296.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.64 : 17,984.70 = 4,197.06 : x
  2. Step 2: Convert to fraction form
    11,987.64/17,984.70 = 4,197.06/x
  3. Step 3: Cross multiply
    11,987.64x = 17,984.70 × 4,197.06
  4. Step 4: Simplify right side
    11,987.64x = 75,482,864.98
  5. Step 5: Solve for x
    x = 75,482,864.98/11,987.64
  6. Step 6: Final answer
    x = 6,296.72

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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.