Home / 19,388.57-26,757.74-10,891.26

Finding the Fourth Proportional to 19,388.57, 26,757.74 and 10,891.26

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Solution

The fourth proportional to 19,388.57, 26,757.74 and 10,891.26 is: 15,030.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,388.57 : 26,757.74 = 10,891.26 : x
  2. Step 2: Convert to fraction form
    19,388.57/26,757.74 = 10,891.26/x
  3. Step 3: Cross multiply
    19,388.57x = 26,757.74 × 10,891.26
  4. Step 4: Simplify right side
    19,388.57x = 291,425,530.58
  5. Step 5: Solve for x
    x = 291,425,530.58/19,388.57
  6. Step 6: Final answer
    x = 15,030.79

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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.