Home / 12,101.66-18,147.79-4,705.14

Finding the Fourth Proportional to 12,101.66, 18,147.79 and 4,705.14

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Solution

The fourth proportional to 12,101.66, 18,147.79 and 4,705.14 is: 7,055.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101.66 : 18,147.79 = 4,705.14 : x
  2. Step 2: Convert to fraction form
    12,101.66/18,147.79 = 4,705.14/x
  3. Step 3: Cross multiply
    12,101.66x = 18,147.79 × 4,705.14
  4. Step 4: Simplify right side
    12,101.66x = 85,387,892.64
  5. Step 5: Solve for x
    x = 85,387,892.64/12,101.66
  6. Step 6: Final answer
    x = 7,055.88

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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.