Home / 14,059.38-21,105.36-8,220.18

Finding the Fourth Proportional to 14,059.38, 21,105.36 and 8,220.18

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Solution

The fourth proportional to 14,059.38, 21,105.36 and 8,220.18 is: 12,339.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,059.38 : 21,105.36 = 8,220.18 : x
  2. Step 2: Convert to fraction form
    14,059.38/21,105.36 = 8,220.18/x
  3. Step 3: Cross multiply
    14,059.38x = 21,105.36 × 8,220.18
  4. Step 4: Simplify right side
    14,059.38x = 173,489,858.16
  5. Step 5: Solve for x
    x = 173,489,858.16/14,059.38
  6. Step 6: Final answer
    x = 12,339.79

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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.