Home / 12,211.68-18,309.60-4,419.48

Finding the Fourth Proportional to 12,211.68, 18,309.60 and 4,419.48

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Solution

The fourth proportional to 12,211.68, 18,309.60 and 4,419.48 is: 6,626.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.68 : 18,309.60 = 4,419.48 : x
  2. Step 2: Convert to fraction form
    12,211.68/18,309.60 = 4,419.48/x
  3. Step 3: Cross multiply
    12,211.68x = 18,309.60 × 4,419.48
  4. Step 4: Simplify right side
    12,211.68x = 80,918,911.01
  5. Step 5: Solve for x
    x = 80,918,911.01/12,211.68
  6. Step 6: Final answer
    x = 6,626.35

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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.