Home / 17,912.85-26,862.90-5,259.09

Finding the Fourth Proportional to 17,912.85, 26,862.90 and 5,259.09

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Solution

The fourth proportional to 17,912.85, 26,862.90 and 5,259.09 is: 7,886.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,912.85 : 26,862.90 = 5,259.09 : x
  2. Step 2: Convert to fraction form
    17,912.85/26,862.90 = 5,259.09/x
  3. Step 3: Cross multiply
    17,912.85x = 26,862.90 × 5,259.09
  4. Step 4: Simplify right side
    17,912.85x = 141,274,408.76
  5. Step 5: Solve for x
    x = 141,274,408.76/17,912.85
  6. Step 6: Final answer
    x = 7,886.76

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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.