Home / 17,719.72-26,561.34-7,863.64

Finding the Fourth Proportional to 17,719.72, 26,561.34 and 7,863.64

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Solution

The fourth proportional to 17,719.72, 26,561.34 and 7,863.64 is: 11,787.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,719.72 : 26,561.34 = 7,863.64 : x
  2. Step 2: Convert to fraction form
    17,719.72/26,561.34 = 7,863.64/x
  3. Step 3: Cross multiply
    17,719.72x = 26,561.34 × 7,863.64
  4. Step 4: Simplify right side
    17,719.72x = 208,868,815.68
  5. Step 5: Solve for x
    x = 208,868,815.68/17,719.72
  6. Step 6: Final answer
    x = 11,787.37

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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.