Home / 10,120.12-15,172.84-6,825.04

Finding the Fourth Proportional to 10,120.12, 15,172.84 and 6,825.04

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Solution

The fourth proportional to 10,120.12, 15,172.84 and 6,825.04 is: 10,232.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.12 : 15,172.84 = 6,825.04 : x
  2. Step 2: Convert to fraction form
    10,120.12/15,172.84 = 6,825.04/x
  3. Step 3: Cross multiply
    10,120.12x = 15,172.84 × 6,825.04
  4. Step 4: Simplify right side
    10,120.12x = 103,555,239.91
  5. Step 5: Solve for x
    x = 103,555,239.91/10,120.12
  6. Step 6: Final answer
    x = 10,232.61

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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.