Home / 10,186.64-15,247.15-5,249.48

Finding the Fourth Proportional to 10,186.64, 15,247.15 and 5,249.48

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Solution

The fourth proportional to 10,186.64, 15,247.15 and 5,249.48 is: 7,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,186.64 : 15,247.15 = 5,249.48 : x
  2. Step 2: Convert to fraction form
    10,186.64/15,247.15 = 5,249.48/x
  3. Step 3: Cross multiply
    10,186.64x = 15,247.15 × 5,249.48
  4. Step 4: Simplify right side
    10,186.64x = 80,039,655.65
  5. Step 5: Solve for x
    x = 80,039,655.65/10,186.64
  6. Step 6: Final answer
    x = 7,857.32

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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.