Home / 11,987.30-17,982.18-4,598

Finding the Fourth Proportional to 11,987.30, 17,982.18 and 4,598

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Solution

The fourth proportional to 11,987.30, 17,982.18 and 4,598 is: 6,897.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.30 : 17,982.18 = 4,598 : x
  2. Step 2: Convert to fraction form
    11,987.30/17,982.18 = 4,598/x
  3. Step 3: Cross multiply
    11,987.30x = 17,982.18 × 4,598
  4. Step 4: Simplify right side
    11,987.30x = 82,682,063.64
  5. Step 5: Solve for x
    x = 82,682,063.64/11,987.30
  6. Step 6: Final answer
    x = 6,897.47

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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.