Home / 12,083.30-18,119.55-4,685.30

Finding the Fourth Proportional to 12,083.30, 18,119.55 and 4,685.30

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Solution

The fourth proportional to 12,083.30, 18,119.55 and 4,685.30 is: 7,025.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.30 : 18,119.55 = 4,685.30 : x
  2. Step 2: Convert to fraction form
    12,083.30/18,119.55 = 4,685.30/x
  3. Step 3: Cross multiply
    12,083.30x = 18,119.55 × 4,685.30
  4. Step 4: Simplify right side
    12,083.30x = 84,895,527.62
  5. Step 5: Solve for x
    x = 84,895,527.62/12,083.30
  6. Step 6: Final answer
    x = 7,025.86

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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.