Home / 9,712.24-14,568.45-3,138.43

Finding the Fourth Proportional to 9,712.24, 14,568.45 and 3,138.43

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Solution

The fourth proportional to 9,712.24, 14,568.45 and 3,138.43 is: 4,707.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,712.24 : 14,568.45 = 3,138.43 : x
  2. Step 2: Convert to fraction form
    9,712.24/14,568.45 = 3,138.43/x
  3. Step 3: Cross multiply
    9,712.24x = 14,568.45 × 3,138.43
  4. Step 4: Simplify right side
    9,712.24x = 45,722,016.27
  5. Step 5: Solve for x
    x = 45,722,016.27/9,712.24
  6. Step 6: Final answer
    x = 4,707.67

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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.