Home / 12,208.34-18,309.93-3,440.90

Finding the Fourth Proportional to 12,208.34, 18,309.93 and 3,440.90

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Solution

The fourth proportional to 12,208.34, 18,309.93 and 3,440.90 is: 5,160.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.34 : 18,309.93 = 3,440.90 : x
  2. Step 2: Convert to fraction form
    12,208.34/18,309.93 = 3,440.90/x
  3. Step 3: Cross multiply
    12,208.34x = 18,309.93 × 3,440.90
  4. Step 4: Simplify right side
    12,208.34x = 63,002,546.59
  5. Step 5: Solve for x
    x = 63,002,546.59/12,208.34
  6. Step 6: Final answer
    x = 5,160.62

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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.