Home / 13,903.89-20,855.66-3,374

Finding the Fourth Proportional to 13,903.89, 20,855.66 and 3,374

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Solution

The fourth proportional to 13,903.89, 20,855.66 and 3,374 is: 5,060.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.89 : 20,855.66 = 3,374 : x
  2. Step 2: Convert to fraction form
    13,903.89/20,855.66 = 3,374/x
  3. Step 3: Cross multiply
    13,903.89x = 20,855.66 × 3,374
  4. Step 4: Simplify right side
    13,903.89x = 70,367,009.49
  5. Step 5: Solve for x
    x = 70,367,009.49/13,903.89
  6. Step 6: Final answer
    x = 5,060.96

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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.