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Finding the Fourth Proportional to 16,666, 24,986.66 and 10,090.64

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Solution

The fourth proportional to 16,666, 24,986.66 and 10,090.64 is: 15,128.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,666 : 24,986.66 = 10,090.64 : x
  2. Step 2: Convert to fraction form
    16,666/24,986.66 = 10,090.64/x
  3. Step 3: Cross multiply
    16,666x = 24,986.66 × 10,090.64
  4. Step 4: Simplify right side
    16,666x = 252,131,390.86
  5. Step 5: Solve for x
    x = 252,131,390.86/16,666
  6. Step 6: Final answer
    x = 15,128.49

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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.