Home / 13,255.40-19,883.05-3,394.66

Finding the Fourth Proportional to 13,255.40, 19,883.05 and 3,394.66

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Solution

The fourth proportional to 13,255.40, 19,883.05 and 3,394.66 is: 5,091.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.40 : 19,883.05 = 3,394.66 : x
  2. Step 2: Convert to fraction form
    13,255.40/19,883.05 = 3,394.66/x
  3. Step 3: Cross multiply
    13,255.40x = 19,883.05 × 3,394.66
  4. Step 4: Simplify right side
    13,255.40x = 67,496,194.51
  5. Step 5: Solve for x
    x = 67,496,194.51/13,255.40
  6. Step 6: Final answer
    x = 5,091.98

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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.