Home / 12,564.47-18,844.27-11,939.96

Finding the Fourth Proportional to 12,564.47, 18,844.27 and 11,939.96

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Solution

The fourth proportional to 12,564.47, 18,844.27 and 11,939.96 is: 17,907.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,564.47 : 18,844.27 = 11,939.96 : x
  2. Step 2: Convert to fraction form
    12,564.47/18,844.27 = 11,939.96/x
  3. Step 3: Cross multiply
    12,564.47x = 18,844.27 × 11,939.96
  4. Step 4: Simplify right side
    12,564.47x = 224,999,830.03
  5. Step 5: Solve for x
    x = 224,999,830.03/12,564.47
  6. Step 6: Final answer
    x = 17,907.63

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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.