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Finding the Fourth Proportional to 11,237.74, 16,843.39 and 8,455.39

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Solution

The fourth proportional to 11,237.74, 16,843.39 and 8,455.39 is: 12,673.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,237.74 : 16,843.39 = 8,455.39 : x
  2. Step 2: Convert to fraction form
    11,237.74/16,843.39 = 8,455.39/x
  3. Step 3: Cross multiply
    11,237.74x = 16,843.39 × 8,455.39
  4. Step 4: Simplify right side
    11,237.74x = 142,417,415.69
  5. Step 5: Solve for x
    x = 142,417,415.69/11,237.74
  6. Step 6: Final answer
    x = 12,673.14

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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.