Home / 13,949.89-19,255.11-8,285.56

Finding the Fourth Proportional to 13,949.89, 19,255.11 and 8,285.56

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Solution

The fourth proportional to 13,949.89, 19,255.11 and 8,285.56 is: 11,436.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.89 : 19,255.11 = 8,285.56 : x
  2. Step 2: Convert to fraction form
    13,949.89/19,255.11 = 8,285.56/x
  3. Step 3: Cross multiply
    13,949.89x = 19,255.11 × 8,285.56
  4. Step 4: Simplify right side
    13,949.89x = 159,539,321.07
  5. Step 5: Solve for x
    x = 159,539,321.07/13,949.89
  6. Step 6: Final answer
    x = 11,436.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.