Home / 6,399.10-9,592.80-5,418.23

Finding the Fourth Proportional to 6,399.10, 9,592.80 and 5,418.23

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Solution

The fourth proportional to 6,399.10, 9,592.80 and 5,418.23 is: 8,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399.10 : 9,592.80 = 5,418.23 : x
  2. Step 2: Convert to fraction form
    6,399.10/9,592.80 = 5,418.23/x
  3. Step 3: Cross multiply
    6,399.10x = 9,592.80 × 5,418.23
  4. Step 4: Simplify right side
    6,399.10x = 51,975,996.74
  5. Step 5: Solve for x
    x = 51,975,996.74/6,399.10
  6. Step 6: Final answer
    x = 8,122.40

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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.