Home / 19,183.92-26,478.13-12,477.12

Finding the Fourth Proportional to 19,183.92, 26,478.13 and 12,477.12

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Solution

The fourth proportional to 19,183.92, 26,478.13 and 12,477.12 is: 17,221.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,183.92 : 26,478.13 = 12,477.12 : x
  2. Step 2: Convert to fraction form
    19,183.92/26,478.13 = 12,477.12/x
  3. Step 3: Cross multiply
    19,183.92x = 26,478.13 × 12,477.12
  4. Step 4: Simplify right side
    19,183.92x = 330,370,882.33
  5. Step 5: Solve for x
    x = 330,370,882.33/19,183.92
  6. Step 6: Final answer
    x = 17,221.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.