Home / 15,204.54-20,970.22-9,236.09

Finding the Fourth Proportional to 15,204.54, 20,970.22 and 9,236.09

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Solution

The fourth proportional to 15,204.54, 20,970.22 and 9,236.09 is: 12,738.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,204.54 : 20,970.22 = 9,236.09 : x
  2. Step 2: Convert to fraction form
    15,204.54/20,970.22 = 9,236.09/x
  3. Step 3: Cross multiply
    15,204.54x = 20,970.22 × 9,236.09
  4. Step 4: Simplify right side
    15,204.54x = 193,682,839.24
  5. Step 5: Solve for x
    x = 193,682,839.24/15,204.54
  6. Step 6: Final answer
    x = 12,738.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.