Home / 10,758.24-16,138.80-3,831.12

Finding the Fourth Proportional to 10,758.24, 16,138.80 and 3,831.12

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Solution

The fourth proportional to 10,758.24, 16,138.80 and 3,831.12 is: 5,747.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,758.24 : 16,138.80 = 3,831.12 : x
  2. Step 2: Convert to fraction form
    10,758.24/16,138.80 = 3,831.12/x
  3. Step 3: Cross multiply
    10,758.24x = 16,138.80 × 3,831.12
  4. Step 4: Simplify right side
    10,758.24x = 61,829,679.46
  5. Step 5: Solve for x
    x = 61,829,679.46/10,758.24
  6. Step 6: Final answer
    x = 5,747.19

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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.