Home / 9,021.73-13,534.64-3,178.39

Finding the Fourth Proportional to 9,021.73, 13,534.64 and 3,178.39

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Solution

The fourth proportional to 9,021.73, 13,534.64 and 3,178.39 is: 4,768.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021.73 : 13,534.64 = 3,178.39 : x
  2. Step 2: Convert to fraction form
    9,021.73/13,534.64 = 3,178.39/x
  3. Step 3: Cross multiply
    9,021.73x = 13,534.64 × 3,178.39
  4. Step 4: Simplify right side
    9,021.73x = 43,018,364.43
  5. Step 5: Solve for x
    x = 43,018,364.43/9,021.73
  6. Step 6: Final answer
    x = 4,768.31

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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.