Home / 13,932.09-20,897.73-4,071.60

Finding the Fourth Proportional to 13,932.09, 20,897.73 and 4,071.60

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Solution

The fourth proportional to 13,932.09, 20,897.73 and 4,071.60 is: 6,107.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.09 : 20,897.73 = 4,071.60 : x
  2. Step 2: Convert to fraction form
    13,932.09/20,897.73 = 4,071.60/x
  3. Step 3: Cross multiply
    13,932.09x = 20,897.73 × 4,071.60
  4. Step 4: Simplify right side
    13,932.09x = 85,087,197.47
  5. Step 5: Solve for x
    x = 85,087,197.47/13,932.09
  6. Step 6: Final answer
    x = 6,107.28

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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.