Home / 9,145.24-13,719.92-2,905.45

Finding the Fourth Proportional to 9,145.24, 13,719.92 and 2,905.45

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Solution

The fourth proportional to 9,145.24, 13,719.92 and 2,905.45 is: 4,358.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.24 : 13,719.92 = 2,905.45 : x
  2. Step 2: Convert to fraction form
    9,145.24/13,719.92 = 2,905.45/x
  3. Step 3: Cross multiply
    9,145.24x = 13,719.92 × 2,905.45
  4. Step 4: Simplify right side
    9,145.24x = 39,862,527.04
  5. Step 5: Solve for x
    x = 39,862,527.04/9,145.24
  6. Step 6: Final answer
    x = 4,358.83

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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.