Home / 9,144.37-13,734.78-8,628.58

Finding the Fourth Proportional to 9,144.37, 13,734.78 and 8,628.58

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Solution

The fourth proportional to 9,144.37, 13,734.78 and 8,628.58 is: 12,960.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.37 : 13,734.78 = 8,628.58 : x
  2. Step 2: Convert to fraction form
    9,144.37/13,734.78 = 8,628.58/x
  3. Step 3: Cross multiply
    9,144.37x = 13,734.78 × 8,628.58
  4. Step 4: Simplify right side
    9,144.37x = 118,511,648.01
  5. Step 5: Solve for x
    x = 118,511,648.01/9,144.37
  6. Step 6: Final answer
    x = 12,960.07

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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.