Home / 18,507.88-27,761.64-5,360.14

Finding the Fourth Proportional to 18,507.88, 27,761.64 and 5,360.14

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Solution

The fourth proportional to 18,507.88, 27,761.64 and 5,360.14 is: 8,040.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.88 : 27,761.64 = 5,360.14 : x
  2. Step 2: Convert to fraction form
    18,507.88/27,761.64 = 5,360.14/x
  3. Step 3: Cross multiply
    18,507.88x = 27,761.64 × 5,360.14
  4. Step 4: Simplify right side
    18,507.88x = 148,806,277.03
  5. Step 5: Solve for x
    x = 148,806,277.03/18,507.88
  6. Step 6: Final answer
    x = 8,040.16

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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.