Home / 14,453.78-21,680.73-6,131.70

Finding the Fourth Proportional to 14,453.78, 21,680.73 and 6,131.70

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Solution

The fourth proportional to 14,453.78, 21,680.73 and 6,131.70 is: 9,197.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,453.78 : 21,680.73 = 6,131.70 : x
  2. Step 2: Convert to fraction form
    14,453.78/21,680.73 = 6,131.70/x
  3. Step 3: Cross multiply
    14,453.78x = 21,680.73 × 6,131.70
  4. Step 4: Simplify right side
    14,453.78x = 132,939,732.14
  5. Step 5: Solve for x
    x = 132,939,732.14/14,453.78
  6. Step 6: Final answer
    x = 9,197.58

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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.