Home / 13,902.08-20,874.24-12,146.08

Finding the Fourth Proportional to 13,902.08, 20,874.24 and 12,146.08

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Solution

The fourth proportional to 13,902.08, 20,874.24 and 12,146.08 is: 18,237.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.08 : 20,874.24 = 12,146.08 : x
  2. Step 2: Convert to fraction form
    13,902.08/20,874.24 = 12,146.08/x
  3. Step 3: Cross multiply
    13,902.08x = 20,874.24 × 12,146.08
  4. Step 4: Simplify right side
    13,902.08x = 253,540,188.98
  5. Step 5: Solve for x
    x = 253,540,188.98/13,902.08
  6. Step 6: Final answer
    x = 18,237.57

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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.