Home / 12,104.54-18,156.16-3,783.61

Finding the Fourth Proportional to 12,104.54, 18,156.16 and 3,783.61

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Solution

The fourth proportional to 12,104.54, 18,156.16 and 3,783.61 is: 5,675.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,104.54 : 18,156.16 = 3,783.61 : x
  2. Step 2: Convert to fraction form
    12,104.54/18,156.16 = 3,783.61/x
  3. Step 3: Cross multiply
    12,104.54x = 18,156.16 × 3,783.61
  4. Step 4: Simplify right side
    12,104.54x = 68,695,828.54
  5. Step 5: Solve for x
    x = 68,695,828.54/12,104.54
  6. Step 6: Final answer
    x = 5,675.21

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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.