Home / 11,985.48-17,967.58-6,441.80

Finding the Fourth Proportional to 11,985.48, 17,967.58 and 6,441.80

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Solution

The fourth proportional to 11,985.48, 17,967.58 and 6,441.80 is: 9,656.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.48 : 17,967.58 = 6,441.80 : x
  2. Step 2: Convert to fraction form
    11,985.48/17,967.58 = 6,441.80/x
  3. Step 3: Cross multiply
    11,985.48x = 17,967.58 × 6,441.80
  4. Step 4: Simplify right side
    11,985.48x = 115,743,556.84
  5. Step 5: Solve for x
    x = 115,743,556.84/11,985.48
  6. Step 6: Final answer
    x = 9,656.98

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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.