Home / 10,243.88-15,374.98-5,249.66

Finding the Fourth Proportional to 10,243.88, 15,374.98 and 5,249.66

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Solution

The fourth proportional to 10,243.88, 15,374.98 and 5,249.66 is: 7,879.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,243.88 : 15,374.98 = 5,249.66 : x
  2. Step 2: Convert to fraction form
    10,243.88/15,374.98 = 5,249.66/x
  3. Step 3: Cross multiply
    10,243.88x = 15,374.98 × 5,249.66
  4. Step 4: Simplify right side
    10,243.88x = 80,713,417.51
  5. Step 5: Solve for x
    x = 80,713,417.51/10,243.88
  6. Step 6: Final answer
    x = 7,879.18

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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.