Home / 10,080.81-15,121.19-2,685.27

Finding the Fourth Proportional to 10,080.81, 15,121.19 and 2,685.27

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Solution

The fourth proportional to 10,080.81, 15,121.19 and 2,685.27 is: 4,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080.81 : 15,121.19 = 2,685.27 : x
  2. Step 2: Convert to fraction form
    10,080.81/15,121.19 = 2,685.27/x
  3. Step 3: Cross multiply
    10,080.81x = 15,121.19 × 2,685.27
  4. Step 4: Simplify right side
    10,080.81x = 40,604,484.58
  5. Step 5: Solve for x
    x = 40,604,484.58/10,080.81
  6. Step 6: Final answer
    x = 4,027.90

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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.