Home / 12,209.49-18,316.98-4,418.28

Finding the Fourth Proportional to 12,209.49, 18,316.98 and 4,418.28

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Solution

The fourth proportional to 12,209.49, 18,316.98 and 4,418.28 is: 6,628.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.49 : 18,316.98 = 4,418.28 : x
  2. Step 2: Convert to fraction form
    12,209.49/18,316.98 = 4,418.28/x
  3. Step 3: Cross multiply
    12,209.49x = 18,316.98 × 4,418.28
  4. Step 4: Simplify right side
    12,209.49x = 80,929,546.39
  5. Step 5: Solve for x
    x = 80,929,546.39/12,209.49
  6. Step 6: Final answer
    x = 6,628.41

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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.