Home / 10,272.87-14,173.23-8,112.55

Finding the Fourth Proportional to 10,272.87, 14,173.23 and 8,112.55

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Solution

The fourth proportional to 10,272.87, 14,173.23 and 8,112.55 is: 11,192.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,272.87 : 14,173.23 = 8,112.55 : x
  2. Step 2: Convert to fraction form
    10,272.87/14,173.23 = 8,112.55/x
  3. Step 3: Cross multiply
    10,272.87x = 14,173.23 × 8,112.55
  4. Step 4: Simplify right side
    10,272.87x = 114,981,037.04
  5. Step 5: Solve for x
    x = 114,981,037.04/10,272.87
  6. Step 6: Final answer
    x = 11,192.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.