Home / 18,678.06-28,019.02-10,789.44

Finding the Fourth Proportional to 18,678.06, 28,019.02 and 10,789.44

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Solution

The fourth proportional to 18,678.06, 28,019.02 and 10,789.44 is: 16,185.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678.06 : 28,019.02 = 10,789.44 : x
  2. Step 2: Convert to fraction form
    18,678.06/28,019.02 = 10,789.44/x
  3. Step 3: Cross multiply
    18,678.06x = 28,019.02 × 10,789.44
  4. Step 4: Simplify right side
    18,678.06x = 302,309,535.15
  5. Step 5: Solve for x
    x = 302,309,535.15/18,678.06
  6. Step 6: Final answer
    x = 16,185.27

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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.