Home / 12,174.48-18,262.62-3,409.06

Finding the Fourth Proportional to 12,174.48, 18,262.62 and 3,409.06

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Solution

The fourth proportional to 12,174.48, 18,262.62 and 3,409.06 is: 5,113.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174.48 : 18,262.62 = 3,409.06 : x
  2. Step 2: Convert to fraction form
    12,174.48/18,262.62 = 3,409.06/x
  3. Step 3: Cross multiply
    12,174.48x = 18,262.62 × 3,409.06
  4. Step 4: Simplify right side
    12,174.48x = 62,258,367.34
  5. Step 5: Solve for x
    x = 62,258,367.34/12,174.48
  6. Step 6: Final answer
    x = 5,113.84

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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.