Home / 13,576.75-20,365.89-4,218.10

Finding the Fourth Proportional to 13,576.75, 20,365.89 and 4,218.10

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Solution

The fourth proportional to 13,576.75, 20,365.89 and 4,218.10 is: 6,327.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.75 : 20,365.89 = 4,218.10 : x
  2. Step 2: Convert to fraction form
    13,576.75/20,365.89 = 4,218.10/x
  3. Step 3: Cross multiply
    13,576.75x = 20,365.89 × 4,218.10
  4. Step 4: Simplify right side
    13,576.75x = 85,905,237.69
  5. Step 5: Solve for x
    x = 85,905,237.69/13,576.75
  6. Step 6: Final answer
    x = 6,327.38

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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.