Home / 10,905.19-16,360.80-3,886.81

Finding the Fourth Proportional to 10,905.19, 16,360.80 and 3,886.81

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Solution

The fourth proportional to 10,905.19, 16,360.80 and 3,886.81 is: 5,831.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.19 : 16,360.80 = 3,886.81 : x
  2. Step 2: Convert to fraction form
    10,905.19/16,360.80 = 3,886.81/x
  3. Step 3: Cross multiply
    10,905.19x = 16,360.80 × 3,886.81
  4. Step 4: Simplify right side
    10,905.19x = 63,591,321.05
  5. Step 5: Solve for x
    x = 63,591,321.05/10,905.19
  6. Step 6: Final answer
    x = 5,831.29

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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.