Home / 19,107.68-26,388.62-13,154.72

Finding the Fourth Proportional to 19,107.68, 26,388.62 and 13,154.72

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Solution

The fourth proportional to 19,107.68, 26,388.62 and 13,154.72 is: 18,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,107.68 : 26,388.62 = 13,154.72 : x
  2. Step 2: Convert to fraction form
    19,107.68/26,388.62 = 13,154.72/x
  3. Step 3: Cross multiply
    19,107.68x = 26,388.62 × 13,154.72
  4. Step 4: Simplify right side
    19,107.68x = 347,134,907.29
  5. Step 5: Solve for x
    x = 347,134,907.29/19,107.68
  6. Step 6: Final answer
    x = 18,167.30

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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.