Home / 12,290.30-18,433.62-3,524.08

Finding the Fourth Proportional to 12,290.30, 18,433.62 and 3,524.08

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Solution

The fourth proportional to 12,290.30, 18,433.62 and 3,524.08 is: 5,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290.30 : 18,433.62 = 3,524.08 : x
  2. Step 2: Convert to fraction form
    12,290.30/18,433.62 = 3,524.08/x
  3. Step 3: Cross multiply
    12,290.30x = 18,433.62 × 3,524.08
  4. Step 4: Simplify right side
    12,290.30x = 64,961,551.57
  5. Step 5: Solve for x
    x = 64,961,551.57/12,290.30
  6. Step 6: Final answer
    x = 5,285.60

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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.