Home / 13,913.28-20,871.21-4,553.36

Finding the Fourth Proportional to 13,913.28, 20,871.21 and 4,553.36

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Solution

The fourth proportional to 13,913.28, 20,871.21 and 4,553.36 is: 6,830.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.28 : 20,871.21 = 4,553.36 : x
  2. Step 2: Convert to fraction form
    13,913.28/20,871.21 = 4,553.36/x
  3. Step 3: Cross multiply
    13,913.28x = 20,871.21 × 4,553.36
  4. Step 4: Simplify right side
    13,913.28x = 95,034,132.77
  5. Step 5: Solve for x
    x = 95,034,132.77/13,913.28
  6. Step 6: Final answer
    x = 6,830.46

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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.