Home / 13,204.50-18,222.21-7,899.54

Finding the Fourth Proportional to 13,204.50, 18,222.21 and 7,899.54

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Solution

The fourth proportional to 13,204.50, 18,222.21 and 7,899.54 is: 10,901.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,204.50 : 18,222.21 = 7,899.54 : x
  2. Step 2: Convert to fraction form
    13,204.50/18,222.21 = 7,899.54/x
  3. Step 3: Cross multiply
    13,204.50x = 18,222.21 × 7,899.54
  4. Step 4: Simplify right side
    13,204.50x = 143,947,076.78
  5. Step 5: Solve for x
    x = 143,947,076.78/13,204.50
  6. Step 6: Final answer
    x = 10,901.37

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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.