Home / 13,147.39-19,709.34-5,745.99

Finding the Fourth Proportional to 13,147.39, 19,709.34 and 5,745.99

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Solution

The fourth proportional to 13,147.39, 19,709.34 and 5,745.99 is: 8,613.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.39 : 19,709.34 = 5,745.99 : x
  2. Step 2: Convert to fraction form
    13,147.39/19,709.34 = 5,745.99/x
  3. Step 3: Cross multiply
    13,147.39x = 19,709.34 × 5,745.99
  4. Step 4: Simplify right side
    13,147.39x = 113,249,670.55
  5. Step 5: Solve for x
    x = 113,249,670.55/13,147.39
  6. Step 6: Final answer
    x = 8,613.85

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1.5x scale

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.