Home / 10,185.85-15,279.74-3,610.47

Finding the Fourth Proportional to 10,185.85, 15,279.74 and 3,610.47

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Solution

The fourth proportional to 10,185.85, 15,279.74 and 3,610.47 is: 5,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,185.85 : 15,279.74 = 3,610.47 : x
  2. Step 2: Convert to fraction form
    10,185.85/15,279.74 = 3,610.47/x
  3. Step 3: Cross multiply
    10,185.85x = 15,279.74 × 3,610.47
  4. Step 4: Simplify right side
    10,185.85x = 55,167,095.66
  5. Step 5: Solve for x
    x = 55,167,095.66/10,185.85
  6. Step 6: Final answer
    x = 5,416.05

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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.