Home / 9,108.20-13,629.90-6,321.80

Finding the Fourth Proportional to 9,108.20, 13,629.90 and 6,321.80

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Solution

The fourth proportional to 9,108.20, 13,629.90 and 6,321.80 is: 9,460.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.20 : 13,629.90 = 6,321.80 : x
  2. Step 2: Convert to fraction form
    9,108.20/13,629.90 = 6,321.80/x
  3. Step 3: Cross multiply
    9,108.20x = 13,629.90 × 6,321.80
  4. Step 4: Simplify right side
    9,108.20x = 86,165,501.82
  5. Step 5: Solve for x
    x = 86,165,501.82/9,108.20
  6. Step 6: Final answer
    x = 9,460.21

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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.