Home / 13,905.68-20,858.61-3,517.46

Finding the Fourth Proportional to 13,905.68, 20,858.61 and 3,517.46

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Solution

The fourth proportional to 13,905.68, 20,858.61 and 3,517.46 is: 5,276.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.68 : 20,858.61 = 3,517.46 : x
  2. Step 2: Convert to fraction form
    13,905.68/20,858.61 = 3,517.46/x
  3. Step 3: Cross multiply
    13,905.68x = 20,858.61 × 3,517.46
  4. Step 4: Simplify right side
    13,905.68x = 73,369,326.33
  5. Step 5: Solve for x
    x = 73,369,326.33/13,905.68
  6. Step 6: Final answer
    x = 5,276.21

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1.5x scale

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.