Home / 12,883.92-19,318.56-11,783.16

Finding the Fourth Proportional to 12,883.92, 19,318.56 and 11,783.16

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Solution

The fourth proportional to 12,883.92, 19,318.56 and 11,783.16 is: 17,668.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883.92 : 19,318.56 = 11,783.16 : x
  2. Step 2: Convert to fraction form
    12,883.92/19,318.56 = 11,783.16/x
  3. Step 3: Cross multiply
    12,883.92x = 19,318.56 × 11,783.16
  4. Step 4: Simplify right side
    12,883.92x = 227,633,683.45
  5. Step 5: Solve for x
    x = 227,633,683.45/12,883.92
  6. Step 6: Final answer
    x = 17,668.05

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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.