Home / 10,185.44-15,279.96-3,615.44

Finding the Fourth Proportional to 10,185.44, 15,279.96 and 3,615.44

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Solution

The fourth proportional to 10,185.44, 15,279.96 and 3,615.44 is: 5,423.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,185.44 : 15,279.96 = 3,615.44 : x
  2. Step 2: Convert to fraction form
    10,185.44/15,279.96 = 3,615.44/x
  3. Step 3: Cross multiply
    10,185.44x = 15,279.96 × 3,615.44
  4. Step 4: Simplify right side
    10,185.44x = 55,243,778.58
  5. Step 5: Solve for x
    x = 55,243,778.58/10,185.44
  6. Step 6: Final answer
    x = 5,423.80

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1.5x scale

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.