Home / 14,221.93-21,336.32-5,456.85

Finding the Fourth Proportional to 14,221.93, 21,336.32 and 5,456.85

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Solution

The fourth proportional to 14,221.93, 21,336.32 and 5,456.85 is: 8,186.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.93 : 21,336.32 = 5,456.85 : x
  2. Step 2: Convert to fraction form
    14,221.93/21,336.32 = 5,456.85/x
  3. Step 3: Cross multiply
    14,221.93x = 21,336.32 × 5,456.85
  4. Step 4: Simplify right side
    14,221.93x = 116,429,046.08
  5. Step 5: Solve for x
    x = 116,429,046.08/14,221.93
  6. Step 6: Final answer
    x = 8,186.58

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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.