Home / 12,321.84-17,004.36-6,732.72

Finding the Fourth Proportional to 12,321.84, 17,004.36 and 6,732.72

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Solution

The fourth proportional to 12,321.84, 17,004.36 and 6,732.72 is: 9,291.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.84 : 17,004.36 = 6,732.72 : x
  2. Step 2: Convert to fraction form
    12,321.84/17,004.36 = 6,732.72/x
  3. Step 3: Cross multiply
    12,321.84x = 17,004.36 × 6,732.72
  4. Step 4: Simplify right side
    12,321.84x = 114,485,594.66
  5. Step 5: Solve for x
    x = 114,485,594.66/12,321.84
  6. Step 6: Final answer
    x = 9,291.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.