Home / 13,937.73-20,872.50-12,588.36

Finding the Fourth Proportional to 13,937.73, 20,872.50 and 12,588.36

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Solution

The fourth proportional to 13,937.73, 20,872.50 and 12,588.36 is: 18,851.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.73 : 20,872.50 = 12,588.36 : x
  2. Step 2: Convert to fraction form
    13,937.73/20,872.50 = 12,588.36/x
  3. Step 3: Cross multiply
    13,937.73x = 20,872.50 × 12,588.36
  4. Step 4: Simplify right side
    13,937.73x = 262,750,544.10
  5. Step 5: Solve for x
    x = 262,750,544.10/13,937.73
  6. Step 6: Final answer
    x = 18,851.75

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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.