Home / 18,315.06-27,468.74-5,163.90

Finding the Fourth Proportional to 18,315.06, 27,468.74 and 5,163.90

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Solution

The fourth proportional to 18,315.06, 27,468.74 and 5,163.90 is: 7,744.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.06 : 27,468.74 = 5,163.90 : x
  2. Step 2: Convert to fraction form
    18,315.06/27,468.74 = 5,163.90/x
  3. Step 3: Cross multiply
    18,315.06x = 27,468.74 × 5,163.90
  4. Step 4: Simplify right side
    18,315.06x = 141,845,826.49
  5. Step 5: Solve for x
    x = 141,845,826.49/18,315.06
  6. Step 6: Final answer
    x = 7,744.76

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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.