Home / 12,206.42-18,309.62-11,583.12

Finding the Fourth Proportional to 12,206.42, 18,309.62 and 11,583.12

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Solution

The fourth proportional to 12,206.42, 18,309.62 and 11,583.12 is: 17,374.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.42 : 18,309.62 = 11,583.12 : x
  2. Step 2: Convert to fraction form
    12,206.42/18,309.62 = 11,583.12/x
  3. Step 3: Cross multiply
    12,206.42x = 18,309.62 × 11,583.12
  4. Step 4: Simplify right side
    12,206.42x = 212,082,467.70
  5. Step 5: Solve for x
    x = 212,082,467.70/12,206.42
  6. Step 6: Final answer
    x = 17,374.67

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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.