Home / 13,135.14-19,704-4,370.70

Finding the Fourth Proportional to 13,135.14, 19,704 and 4,370.70

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Solution

The fourth proportional to 13,135.14, 19,704 and 4,370.70 is: 6,556.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.14 : 19,704 = 4,370.70 : x
  2. Step 2: Convert to fraction form
    13,135.14/19,704 = 4,370.70/x
  3. Step 3: Cross multiply
    13,135.14x = 19,704 × 4,370.70
  4. Step 4: Simplify right side
    13,135.14x = 86,120,272.80
  5. Step 5: Solve for x
    x = 86,120,272.80/13,135.14
  6. Step 6: Final answer
    x = 6,556.48

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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.