Home / 10,214.36-15,321.86-3,289.56

Finding the Fourth Proportional to 10,214.36, 15,321.86 and 3,289.56

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Solution

The fourth proportional to 10,214.36, 15,321.86 and 3,289.56 is: 4,934.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,214.36 : 15,321.86 = 3,289.56 : x
  2. Step 2: Convert to fraction form
    10,214.36/15,321.86 = 3,289.56/x
  3. Step 3: Cross multiply
    10,214.36x = 15,321.86 × 3,289.56
  4. Step 4: Simplify right side
    10,214.36x = 50,402,177.78
  5. Step 5: Solve for x
    x = 50,402,177.78/10,214.36
  6. Step 6: Final answer
    x = 4,934.44

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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.