Home / 14,115.45-21,174.99-4,255.73

Finding the Fourth Proportional to 14,115.45, 21,174.99 and 4,255.73

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Solution

The fourth proportional to 14,115.45, 21,174.99 and 4,255.73 is: 6,384.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.45 : 21,174.99 = 4,255.73 : x
  2. Step 2: Convert to fraction form
    14,115.45/21,174.99 = 4,255.73/x
  3. Step 3: Cross multiply
    14,115.45x = 21,174.99 × 4,255.73
  4. Step 4: Simplify right side
    14,115.45x = 90,115,040.19
  5. Step 5: Solve for x
    x = 90,115,040.19/14,115.45
  6. Step 6: Final answer
    x = 6,384.14

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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.