Home / 10,080.75-15,121.13-2,784.75

Finding the Fourth Proportional to 10,080.75, 15,121.13 and 2,784.75

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Solution

The fourth proportional to 10,080.75, 15,121.13 and 2,784.75 is: 4,177.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080.75 : 15,121.13 = 2,784.75 : x
  2. Step 2: Convert to fraction form
    10,080.75/15,121.13 = 2,784.75/x
  3. Step 3: Cross multiply
    10,080.75x = 15,121.13 × 2,784.75
  4. Step 4: Simplify right side
    10,080.75x = 42,108,552.84
  5. Step 5: Solve for x
    x = 42,108,552.84/10,080.75
  6. Step 6: Final answer
    x = 4,177.13

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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.