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Finding the Fourth Proportional to 11,843.70, 16,344.41 and 6,538.40

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Solution

The fourth proportional to 11,843.70, 16,344.41 and 6,538.40 is: 9,023.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,843.70 : 16,344.41 = 6,538.40 : x
  2. Step 2: Convert to fraction form
    11,843.70/16,344.41 = 6,538.40/x
  3. Step 3: Cross multiply
    11,843.70x = 16,344.41 × 6,538.40
  4. Step 4: Simplify right side
    11,843.70x = 106,866,290.34
  5. Step 5: Solve for x
    x = 106,866,290.34/11,843.70
  6. Step 6: Final answer
    x = 9,023.05

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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.