Home / 12,230.26-18,346.40-3,911.46

Finding the Fourth Proportional to 12,230.26, 18,346.40 and 3,911.46

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Solution

The fourth proportional to 12,230.26, 18,346.40 and 3,911.46 is: 5,867.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.26 : 18,346.40 = 3,911.46 : x
  2. Step 2: Convert to fraction form
    12,230.26/18,346.40 = 3,911.46/x
  3. Step 3: Cross multiply
    12,230.26x = 18,346.40 × 3,911.46
  4. Step 4: Simplify right side
    12,230.26x = 71,761,209.74
  5. Step 5: Solve for x
    x = 71,761,209.74/12,230.26
  6. Step 6: Final answer
    x = 5,867.51

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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.