Home / 13,630.75-20,433.99-5,308.82

Finding the Fourth Proportional to 13,630.75, 20,433.99 and 5,308.82

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Solution

The fourth proportional to 13,630.75, 20,433.99 and 5,308.82 is: 7,958.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.75 : 20,433.99 = 5,308.82 : x
  2. Step 2: Convert to fraction form
    13,630.75/20,433.99 = 5,308.82/x
  3. Step 3: Cross multiply
    13,630.75x = 20,433.99 × 5,308.82
  4. Step 4: Simplify right side
    13,630.75x = 108,480,374.79
  5. Step 5: Solve for x
    x = 108,480,374.79/13,630.75
  6. Step 6: Final answer
    x = 7,958.51

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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.