Home / 19,391.36-26,757.16-10,891.86

Finding the Fourth Proportional to 19,391.36, 26,757.16 and 10,891.86

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Solution

The fourth proportional to 19,391.36, 26,757.16 and 10,891.86 is: 15,029.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,391.36 : 26,757.16 = 10,891.86 : x
  2. Step 2: Convert to fraction form
    19,391.36/26,757.16 = 10,891.86/x
  3. Step 3: Cross multiply
    19,391.36x = 26,757.16 × 10,891.86
  4. Step 4: Simplify right side
    19,391.36x = 291,435,240.72
  5. Step 5: Solve for x
    x = 291,435,240.72/19,391.36
  6. Step 6: Final answer
    x = 15,029.13

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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.