Home / 5,636.68-8,438.40-5,396.11

Finding the Fourth Proportional to 5,636.68, 8,438.40 and 5,396.11

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Solution

The fourth proportional to 5,636.68, 8,438.40 and 5,396.11 is: 8,078.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.68 : 8,438.40 = 5,396.11 : x
  2. Step 2: Convert to fraction form
    5,636.68/8,438.40 = 5,396.11/x
  3. Step 3: Cross multiply
    5,636.68x = 8,438.40 × 5,396.11
  4. Step 4: Simplify right side
    5,636.68x = 45,534,513.53
  5. Step 5: Solve for x
    x = 45,534,513.53/5,636.68
  6. Step 6: Final answer
    x = 8,078.25

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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.