Home / 11,336.40-15,644.84-6,623.44

Finding the Fourth Proportional to 11,336.40, 15,644.84 and 6,623.44

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Solution

The fourth proportional to 11,336.40, 15,644.84 and 6,623.44 is: 9,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,336.40 : 15,644.84 = 6,623.44 : x
  2. Step 2: Convert to fraction form
    11,336.40/15,644.84 = 6,623.44/x
  3. Step 3: Cross multiply
    11,336.40x = 15,644.84 × 6,623.44
  4. Step 4: Simplify right side
    11,336.40x = 103,622,659.05
  5. Step 5: Solve for x
    x = 103,622,659.05/11,336.40
  6. Step 6: Final answer
    x = 9,140.70

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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.