Home / 18,144.96-25,042.78-11,075.50

Finding the Fourth Proportional to 18,144.96, 25,042.78 and 11,075.50

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Solution

The fourth proportional to 18,144.96, 25,042.78 and 11,075.50 is: 15,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.96 : 25,042.78 = 11,075.50 : x
  2. Step 2: Convert to fraction form
    18,144.96/25,042.78 = 11,075.50/x
  3. Step 3: Cross multiply
    18,144.96x = 25,042.78 × 11,075.50
  4. Step 4: Simplify right side
    18,144.96x = 277,361,309.89
  5. Step 5: Solve for x
    x = 277,361,309.89/18,144.96
  6. Step 6: Final answer
    x = 15,285.86

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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.