Home / 13,817.69-20,719.19-5,493.42

Finding the Fourth Proportional to 13,817.69, 20,719.19 and 5,493.42

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Solution

The fourth proportional to 13,817.69, 20,719.19 and 5,493.42 is: 8,237.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.69 : 20,719.19 = 5,493.42 : x
  2. Step 2: Convert to fraction form
    13,817.69/20,719.19 = 5,493.42/x
  3. Step 3: Cross multiply
    13,817.69x = 20,719.19 × 5,493.42
  4. Step 4: Simplify right side
    13,817.69x = 113,819,226.46
  5. Step 5: Solve for x
    x = 113,819,226.46/13,817.69
  6. Step 6: Final answer
    x = 8,237.21

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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.