Home / 12,666.33-18,989.27-5,276.36

Finding the Fourth Proportional to 12,666.33, 18,989.27 and 5,276.36

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Solution

The fourth proportional to 12,666.33, 18,989.27 and 5,276.36 is: 7,910.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.33 : 18,989.27 = 5,276.36 : x
  2. Step 2: Convert to fraction form
    12,666.33/18,989.27 = 5,276.36/x
  3. Step 3: Cross multiply
    12,666.33x = 18,989.27 × 5,276.36
  4. Step 4: Simplify right side
    12,666.33x = 100,194,103.33
  5. Step 5: Solve for x
    x = 100,194,103.33/12,666.33
  6. Step 6: Final answer
    x = 7,910.27

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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.