Home / 11,820.45-17,731.35-3,055.14

Finding the Fourth Proportional to 11,820.45, 17,731.35 and 3,055.14

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Solution

The fourth proportional to 11,820.45, 17,731.35 and 3,055.14 is: 4,582.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.45 : 17,731.35 = 3,055.14 : x
  2. Step 2: Convert to fraction form
    11,820.45/17,731.35 = 3,055.14/x
  3. Step 3: Cross multiply
    11,820.45x = 17,731.35 × 3,055.14
  4. Step 4: Simplify right side
    11,820.45x = 54,171,756.64
  5. Step 5: Solve for x
    x = 54,171,756.64/11,820.45
  6. Step 6: Final answer
    x = 4,582.88

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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.