Home / 10,131.04-15,194.63-4,291.75

Finding the Fourth Proportional to 10,131.04, 15,194.63 and 4,291.75

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Solution

The fourth proportional to 10,131.04, 15,194.63 and 4,291.75 is: 6,436.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.04 : 15,194.63 = 4,291.75 : x
  2. Step 2: Convert to fraction form
    10,131.04/15,194.63 = 4,291.75/x
  3. Step 3: Cross multiply
    10,131.04x = 15,194.63 × 4,291.75
  4. Step 4: Simplify right side
    10,131.04x = 65,211,553.30
  5. Step 5: Solve for x
    x = 65,211,553.30/10,131.04
  6. Step 6: Final answer
    x = 6,436.81

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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.