Home / 14,121.08-21,174.77-4,258.52

Finding the Fourth Proportional to 14,121.08, 21,174.77 and 4,258.52

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Solution

The fourth proportional to 14,121.08, 21,174.77 and 4,258.52 is: 6,385.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.08 : 21,174.77 = 4,258.52 : x
  2. Step 2: Convert to fraction form
    14,121.08/21,174.77 = 4,258.52/x
  3. Step 3: Cross multiply
    14,121.08x = 21,174.77 × 4,258.52
  4. Step 4: Simplify right side
    14,121.08x = 90,173,181.54
  5. Step 5: Solve for x
    x = 90,173,181.54/14,121.08
  6. Step 6: Final answer
    x = 6,385.71

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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.