Home / 13,895.12-20,887.86-11,151.84

Finding the Fourth Proportional to 13,895.12, 20,887.86 and 11,151.84

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Solution

The fourth proportional to 13,895.12, 20,887.86 and 11,151.84 is: 16,764.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,895.12 : 20,887.86 = 11,151.84 : x
  2. Step 2: Convert to fraction form
    13,895.12/20,887.86 = 11,151.84/x
  3. Step 3: Cross multiply
    13,895.12x = 20,887.86 × 11,151.84
  4. Step 4: Simplify right side
    13,895.12x = 232,938,072.66
  5. Step 5: Solve for x
    x = 232,938,072.66/13,895.12
  6. Step 6: Final answer
    x = 16,764.02

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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.