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Finding the Fourth Proportional to 12,648.54, 18,963.69 and 6,069.66

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Solution

The fourth proportional to 12,648.54, 18,963.69 and 6,069.66 is: 9,100.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.54 : 18,963.69 = 6,069.66 : x
  2. Step 2: Convert to fraction form
    12,648.54/18,963.69 = 6,069.66/x
  3. Step 3: Cross multiply
    12,648.54x = 18,963.69 × 6,069.66
  4. Step 4: Simplify right side
    12,648.54x = 115,103,150.65
  5. Step 5: Solve for x
    x = 115,103,150.65/12,648.54
  6. Step 6: Final answer
    x = 9,100.11

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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.