Home / 8,485.48-12,728.10-3,292.36

Finding the Fourth Proportional to 8,485.48, 12,728.10 and 3,292.36

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Solution

The fourth proportional to 8,485.48, 12,728.10 and 3,292.36 is: 4,938.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.48 : 12,728.10 = 3,292.36 : x
  2. Step 2: Convert to fraction form
    8,485.48/12,728.10 = 3,292.36/x
  3. Step 3: Cross multiply
    8,485.48x = 12,728.10 × 3,292.36
  4. Step 4: Simplify right side
    8,485.48x = 41,905,487.32
  5. Step 5: Solve for x
    x = 41,905,487.32/8,485.48
  6. Step 6: Final answer
    x = 4,938.49

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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.