Home / 12,644.91-18,969.80-4,853.12

Finding the Fourth Proportional to 12,644.91, 18,969.80 and 4,853.12

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Solution

The fourth proportional to 12,644.91, 18,969.80 and 4,853.12 is: 7,280.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.91 : 18,969.80 = 4,853.12 : x
  2. Step 2: Convert to fraction form
    12,644.91/18,969.80 = 4,853.12/x
  3. Step 3: Cross multiply
    12,644.91x = 18,969.80 × 4,853.12
  4. Step 4: Simplify right side
    12,644.91x = 92,062,596.66
  5. Step 5: Solve for x
    x = 92,062,596.66/12,644.91
  6. Step 6: Final answer
    x = 7,280.61

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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.