Home / 18,928.32-26,110.80-11,853.28

Finding the Fourth Proportional to 18,928.32, 26,110.80 and 11,853.28

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Solution

The fourth proportional to 18,928.32, 26,110.80 and 11,853.28 is: 16,351.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.32 : 26,110.80 = 11,853.28 : x
  2. Step 2: Convert to fraction form
    18,928.32/26,110.80 = 11,853.28/x
  3. Step 3: Cross multiply
    18,928.32x = 26,110.80 × 11,853.28
  4. Step 4: Simplify right side
    18,928.32x = 309,498,623.42
  5. Step 5: Solve for x
    x = 309,498,623.42/18,928.32
  6. Step 6: Final answer
    x = 16,351.09

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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.