Home / 18,341.11-27,507.75-5,189.95

Finding the Fourth Proportional to 18,341.11, 27,507.75 and 5,189.95

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Solution

The fourth proportional to 18,341.11, 27,507.75 and 5,189.95 is: 7,783.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.11 : 27,507.75 = 5,189.95 : x
  2. Step 2: Convert to fraction form
    18,341.11/27,507.75 = 5,189.95/x
  3. Step 3: Cross multiply
    18,341.11x = 27,507.75 × 5,189.95
  4. Step 4: Simplify right side
    18,341.11x = 142,763,847.11
  5. Step 5: Solve for x
    x = 142,763,847.11/18,341.11
  6. Step 6: Final answer
    x = 7,783.82

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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.