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Finding the Fourth Proportional to 11,253.12, 16,866.96 and 6,860.94

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Solution

The fourth proportional to 11,253.12, 16,866.96 and 6,860.94 is: 10,283.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,253.12 : 16,866.96 = 6,860.94 : x
  2. Step 2: Convert to fraction form
    11,253.12/16,866.96 = 6,860.94/x
  3. Step 3: Cross multiply
    11,253.12x = 16,866.96 × 6,860.94
  4. Step 4: Simplify right side
    11,253.12x = 115,723,200.54
  5. Step 5: Solve for x
    x = 115,723,200.54/11,253.12
  6. Step 6: Final answer
    x = 10,283.65

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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.