Home / 9,144.82-13,719.66-2,905

Finding the Fourth Proportional to 9,144.82, 13,719.66 and 2,905

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Solution

The fourth proportional to 9,144.82, 13,719.66 and 2,905 is: 4,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.82 : 13,719.66 = 2,905 : x
  2. Step 2: Convert to fraction form
    9,144.82/13,719.66 = 2,905/x
  3. Step 3: Cross multiply
    9,144.82x = 13,719.66 × 2,905
  4. Step 4: Simplify right side
    9,144.82x = 39,855,612.30
  5. Step 5: Solve for x
    x = 39,855,612.30/9,144.82
  6. Step 6: Final answer
    x = 4,358.27

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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.