Home / 13,800.97-19,044.68-7,831.83

Finding the Fourth Proportional to 13,800.97, 19,044.68 and 7,831.83

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Solution

The fourth proportional to 13,800.97, 19,044.68 and 7,831.83 is: 10,807.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.97 : 19,044.68 = 7,831.83 : x
  2. Step 2: Convert to fraction form
    13,800.97/19,044.68 = 7,831.83/x
  3. Step 3: Cross multiply
    13,800.97x = 19,044.68 × 7,831.83
  4. Step 4: Simplify right side
    13,800.97x = 149,154,600.94
  5. Step 5: Solve for x
    x = 149,154,600.94/13,800.97
  6. Step 6: Final answer
    x = 10,807.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.