Home / 11,965.28-17,948.35-6,115.05

Finding the Fourth Proportional to 11,965.28, 17,948.35 and 6,115.05

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Solution

The fourth proportional to 11,965.28, 17,948.35 and 6,115.05 is: 9,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.28 : 17,948.35 = 6,115.05 : x
  2. Step 2: Convert to fraction form
    11,965.28/17,948.35 = 6,115.05/x
  3. Step 3: Cross multiply
    11,965.28x = 17,948.35 × 6,115.05
  4. Step 4: Simplify right side
    11,965.28x = 109,755,065.31
  5. Step 5: Solve for x
    x = 109,755,065.31/11,965.28
  6. Step 6: Final answer
    x = 9,172.80

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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.