Home / 13,933.89-20,902.95-4,072.01

Finding the Fourth Proportional to 13,933.89, 20,902.95 and 4,072.01

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Solution

The fourth proportional to 13,933.89, 20,902.95 and 4,072.01 is: 6,108.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.89 : 20,902.95 = 4,072.01 : x
  2. Step 2: Convert to fraction form
    13,933.89/20,902.95 = 4,072.01/x
  3. Step 3: Cross multiply
    13,933.89x = 20,902.95 × 4,072.01
  4. Step 4: Simplify right side
    13,933.89x = 85,116,916.91
  5. Step 5: Solve for x
    x = 85,116,916.91/13,933.89
  6. Step 6: Final answer
    x = 6,108.63

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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.