Home / 12,309.09-18,452.27-4,911.75

Finding the Fourth Proportional to 12,309.09, 18,452.27 and 4,911.75

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Solution

The fourth proportional to 12,309.09, 18,452.27 and 4,911.75 is: 7,363.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309.09 : 18,452.27 = 4,911.75 : x
  2. Step 2: Convert to fraction form
    12,309.09/18,452.27 = 4,911.75/x
  3. Step 3: Cross multiply
    12,309.09x = 18,452.27 × 4,911.75
  4. Step 4: Simplify right side
    12,309.09x = 90,632,912.61
  5. Step 5: Solve for x
    x = 90,632,912.61/12,309.09
  6. Step 6: Final answer
    x = 7,363.09

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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.