Home / 13,138.60-19,701.30-4,370.44

Finding the Fourth Proportional to 13,138.60, 19,701.30 and 4,370.44

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Solution

The fourth proportional to 13,138.60, 19,701.30 and 4,370.44 is: 6,553.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138.60 : 19,701.30 = 4,370.44 : x
  2. Step 2: Convert to fraction form
    13,138.60/19,701.30 = 4,370.44/x
  3. Step 3: Cross multiply
    13,138.60x = 19,701.30 × 4,370.44
  4. Step 4: Simplify right side
    13,138.60x = 86,103,349.57
  5. Step 5: Solve for x
    x = 86,103,349.57/13,138.60
  6. Step 6: Final answer
    x = 6,553.46

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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.