Home / 19,389.88-26,758.90-11,007.16

Finding the Fourth Proportional to 19,389.88, 26,758.90 and 11,007.16

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Solution

The fourth proportional to 19,389.88, 26,758.90 and 11,007.16 is: 15,190.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.88 : 26,758.90 = 11,007.16 : x
  2. Step 2: Convert to fraction form
    19,389.88/26,758.90 = 11,007.16/x
  3. Step 3: Cross multiply
    19,389.88x = 26,758.90 × 11,007.16
  4. Step 4: Simplify right side
    19,389.88x = 294,539,493.72
  5. Step 5: Solve for x
    x = 294,539,493.72/19,389.88
  6. Step 6: Final answer
    x = 15,190.37

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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.