Home / 13,255.19-19,882.67-3,394.45

Finding the Fourth Proportional to 13,255.19, 19,882.67 and 3,394.45

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Solution

The fourth proportional to 13,255.19, 19,882.67 and 3,394.45 is: 5,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.19 : 19,882.67 = 3,394.45 : x
  2. Step 2: Convert to fraction form
    13,255.19/19,882.67 = 3,394.45/x
  3. Step 3: Cross multiply
    13,255.19x = 19,882.67 × 3,394.45
  4. Step 4: Simplify right side
    13,255.19x = 67,490,687.96
  5. Step 5: Solve for x
    x = 67,490,687.96/13,255.19
  6. Step 6: Final answer
    x = 5,091.64

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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.