Home / 6,817.79-9,401.45-5,399.21

Finding the Fourth Proportional to 6,817.79, 9,401.45 and 5,399.21

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Solution

The fourth proportional to 6,817.79, 9,401.45 and 5,399.21 is: 7,445.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,817.79 : 9,401.45 = 5,399.21 : x
  2. Step 2: Convert to fraction form
    6,817.79/9,401.45 = 5,399.21/x
  3. Step 3: Cross multiply
    6,817.79x = 9,401.45 × 5,399.21
  4. Step 4: Simplify right side
    6,817.79x = 50,760,328.85
  5. Step 5: Solve for x
    x = 50,760,328.85/6,817.79
  6. Step 6: Final answer
    x = 7,445.28

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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.