Home / 17,750.78-26,635.18-11,831.72

Finding the Fourth Proportional to 17,750.78, 26,635.18 and 11,831.72

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Solution

The fourth proportional to 17,750.78, 26,635.18 and 11,831.72 is: 17,753.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,750.78 : 26,635.18 = 11,831.72 : x
  2. Step 2: Convert to fraction form
    17,750.78/26,635.18 = 11,831.72/x
  3. Step 3: Cross multiply
    17,750.78x = 26,635.18 × 11,831.72
  4. Step 4: Simplify right side
    17,750.78x = 315,139,991.91
  5. Step 5: Solve for x
    x = 315,139,991.91/17,750.78
  6. Step 6: Final answer
    x = 17,753.59

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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.