Home / 10,119.86-15,186.75-3,546.08

Finding the Fourth Proportional to 10,119.86, 15,186.75 and 3,546.08

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Solution

The fourth proportional to 10,119.86, 15,186.75 and 3,546.08 is: 5,321.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.86 : 15,186.75 = 3,546.08 : x
  2. Step 2: Convert to fraction form
    10,119.86/15,186.75 = 3,546.08/x
  3. Step 3: Cross multiply
    10,119.86x = 15,186.75 × 3,546.08
  4. Step 4: Simplify right side
    10,119.86x = 53,853,430.44
  5. Step 5: Solve for x
    x = 53,853,430.44/10,119.86
  6. Step 6: Final answer
    x = 5,321.56

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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.