Home / 18,521.19-27,779.39-10,926.83

Finding the Fourth Proportional to 18,521.19, 27,779.39 and 10,926.83

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Solution

The fourth proportional to 18,521.19, 27,779.39 and 10,926.83 is: 16,388.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.19 : 27,779.39 = 10,926.83 : x
  2. Step 2: Convert to fraction form
    18,521.19/27,779.39 = 10,926.83/x
  3. Step 3: Cross multiply
    18,521.19x = 27,779.39 × 10,926.83
  4. Step 4: Simplify right side
    18,521.19x = 303,540,727.82
  5. Step 5: Solve for x
    x = 303,540,727.82/18,521.19
  6. Step 6: Final answer
    x = 16,388.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.