Home / 12,076.48-16,666-6,771.20

Finding the Fourth Proportional to 12,076.48, 16,666 and 6,771.20

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Solution

The fourth proportional to 12,076.48, 16,666 and 6,771.20 is: 9,344.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.48 : 16,666 = 6,771.20 : x
  2. Step 2: Convert to fraction form
    12,076.48/16,666 = 6,771.20/x
  3. Step 3: Cross multiply
    12,076.48x = 16,666 × 6,771.20
  4. Step 4: Simplify right side
    12,076.48x = 112,848,819.20
  5. Step 5: Solve for x
    x = 112,848,819.20/12,076.48
  6. Step 6: Final answer
    x = 9,344.51

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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.