Home / 13,905.94-20,862.15-4,546.39

Finding the Fourth Proportional to 13,905.94, 20,862.15 and 4,546.39

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Solution

The fourth proportional to 13,905.94, 20,862.15 and 4,546.39 is: 6,820.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.94 : 20,862.15 = 4,546.39 : x
  2. Step 2: Convert to fraction form
    13,905.94/20,862.15 = 4,546.39/x
  3. Step 3: Cross multiply
    13,905.94x = 20,862.15 × 4,546.39
  4. Step 4: Simplify right side
    13,905.94x = 94,847,470.14
  5. Step 5: Solve for x
    x = 94,847,470.14/13,905.94
  6. Step 6: Final answer
    x = 6,820.64

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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.