Home / 9,145.23-13,718.33-2,905.73

Finding the Fourth Proportional to 9,145.23, 13,718.33 and 2,905.73

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Solution

The fourth proportional to 9,145.23, 13,718.33 and 2,905.73 is: 4,358.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.23 : 13,718.33 = 2,905.73 : x
  2. Step 2: Convert to fraction form
    9,145.23/13,718.33 = 2,905.73/x
  3. Step 3: Cross multiply
    9,145.23x = 13,718.33 × 2,905.73
  4. Step 4: Simplify right side
    9,145.23x = 39,861,763.03
  5. Step 5: Solve for x
    x = 39,861,763.03/9,145.23
  6. Step 6: Final answer
    x = 4,358.75

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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.