Home / 10,181.13-15,249.14-7,823.79

Finding the Fourth Proportional to 10,181.13, 15,249.14 and 7,823.79

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Solution

The fourth proportional to 10,181.13, 15,249.14 and 7,823.79 is: 11,718.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,181.13 : 15,249.14 = 7,823.79 : x
  2. Step 2: Convert to fraction form
    10,181.13/15,249.14 = 7,823.79/x
  3. Step 3: Cross multiply
    10,181.13x = 15,249.14 × 7,823.79
  4. Step 4: Simplify right side
    10,181.13x = 119,306,029.92
  5. Step 5: Solve for x
    x = 119,306,029.92/10,181.13
  6. Step 6: Final answer
    x = 11,718.35

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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.