Home / 9,858.20-13,604.34-6,321.42

Finding the Fourth Proportional to 9,858.20, 13,604.34 and 6,321.42

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Solution

The fourth proportional to 9,858.20, 13,604.34 and 6,321.42 is: 8,723.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,858.20 : 13,604.34 = 6,321.42 : x
  2. Step 2: Convert to fraction form
    9,858.20/13,604.34 = 6,321.42/x
  3. Step 3: Cross multiply
    9,858.20x = 13,604.34 × 6,321.42
  4. Step 4: Simplify right side
    9,858.20x = 85,998,746.96
  5. Step 5: Solve for x
    x = 85,998,746.96/9,858.20
  6. Step 6: Final answer
    x = 8,723.58

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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.