Home / 12,612.33-18,922.14-4,821.75

Finding the Fourth Proportional to 12,612.33, 18,922.14 and 4,821.75

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Solution

The fourth proportional to 12,612.33, 18,922.14 and 4,821.75 is: 7,234.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612.33 : 18,922.14 = 4,821.75 : x
  2. Step 2: Convert to fraction form
    12,612.33/18,922.14 = 4,821.75/x
  3. Step 3: Cross multiply
    12,612.33x = 18,922.14 × 4,821.75
  4. Step 4: Simplify right side
    12,612.33x = 91,237,828.55
  5. Step 5: Solve for x
    x = 91,237,828.55/12,612.33
  6. Step 6: Final answer
    x = 7,234.02

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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.