Home / 14,588.78-21,868.58-7,198.54

Finding the Fourth Proportional to 14,588.78, 21,868.58 and 7,198.54

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Solution

The fourth proportional to 14,588.78, 21,868.58 and 7,198.54 is: 10,790.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,588.78 : 21,868.58 = 7,198.54 : x
  2. Step 2: Convert to fraction form
    14,588.78/21,868.58 = 7,198.54/x
  3. Step 3: Cross multiply
    14,588.78x = 21,868.58 × 7,198.54
  4. Step 4: Simplify right side
    14,588.78x = 157,421,811.20
  5. Step 5: Solve for x
    x = 157,421,811.20/14,588.78
  6. Step 6: Final answer
    x = 10,790.61

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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.