Home / 10,985.96-16,477.70-3,194.78

Finding the Fourth Proportional to 10,985.96, 16,477.70 and 3,194.78

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Solution

The fourth proportional to 10,985.96, 16,477.70 and 3,194.78 is: 4,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.96 : 16,477.70 = 3,194.78 : x
  2. Step 2: Convert to fraction form
    10,985.96/16,477.70 = 3,194.78/x
  3. Step 3: Cross multiply
    10,985.96x = 16,477.70 × 3,194.78
  4. Step 4: Simplify right side
    10,985.96x = 52,642,528.04
  5. Step 5: Solve for x
    x = 52,642,528.04/10,985.96
  6. Step 6: Final answer
    x = 4,791.80

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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.