Home / 19,169.64-26,455.14-12,891.24

Finding the Fourth Proportional to 19,169.64, 26,455.14 and 12,891.24

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Solution

The fourth proportional to 19,169.64, 26,455.14 and 12,891.24 is: 17,790.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,169.64 : 26,455.14 = 12,891.24 : x
  2. Step 2: Convert to fraction form
    19,169.64/26,455.14 = 12,891.24/x
  3. Step 3: Cross multiply
    19,169.64x = 26,455.14 × 12,891.24
  4. Step 4: Simplify right side
    19,169.64x = 341,039,558.97
  5. Step 5: Solve for x
    x = 341,039,558.97/19,169.64
  6. Step 6: Final answer
    x = 17,790.61

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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.