Home / 15,878.14-23,818.11-4,786.36

Finding the Fourth Proportional to 15,878.14, 23,818.11 and 4,786.36

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Solution

The fourth proportional to 15,878.14, 23,818.11 and 4,786.36 is: 7,179.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,878.14 : 23,818.11 = 4,786.36 : x
  2. Step 2: Convert to fraction form
    15,878.14/23,818.11 = 4,786.36/x
  3. Step 3: Cross multiply
    15,878.14x = 23,818.11 × 4,786.36
  4. Step 4: Simplify right side
    15,878.14x = 114,002,048.98
  5. Step 5: Solve for x
    x = 114,002,048.98/15,878.14
  6. Step 6: Final answer
    x = 7,179.81

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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.