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Finding the Fourth Proportional to 11,115.99, 16,673.99 and 4,188.87

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Solution

The fourth proportional to 11,115.99, 16,673.99 and 4,188.87 is: 6,283.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.99 : 16,673.99 = 4,188.87 : x
  2. Step 2: Convert to fraction form
    11,115.99/16,673.99 = 4,188.87/x
  3. Step 3: Cross multiply
    11,115.99x = 16,673.99 × 4,188.87
  4. Step 4: Simplify right side
    11,115.99x = 69,845,155.55
  5. Step 5: Solve for x
    x = 69,845,155.55/11,115.99
  6. Step 6: Final answer
    x = 6,283.31

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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.