Home / 10,985.30-16,480.76-3,194.11

Finding the Fourth Proportional to 10,985.30, 16,480.76 and 3,194.11

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Solution

The fourth proportional to 10,985.30, 16,480.76 and 3,194.11 is: 4,791.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.30 : 16,480.76 = 3,194.11 : x
  2. Step 2: Convert to fraction form
    10,985.30/16,480.76 = 3,194.11/x
  3. Step 3: Cross multiply
    10,985.30x = 16,480.76 × 3,194.11
  4. Step 4: Simplify right side
    10,985.30x = 52,641,303.15
  5. Step 5: Solve for x
    x = 52,641,303.15/10,985.30
  6. Step 6: Final answer
    x = 4,791.98

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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.