Home / 18,684.38-28,033.86-10,782.73

Finding the Fourth Proportional to 18,684.38, 28,033.86 and 10,782.73

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Solution

The fourth proportional to 18,684.38, 28,033.86 and 10,782.73 is: 16,178.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684.38 : 28,033.86 = 10,782.73 : x
  2. Step 2: Convert to fraction form
    18,684.38/28,033.86 = 10,782.73/x
  3. Step 3: Cross multiply
    18,684.38x = 28,033.86 × 10,782.73
  4. Step 4: Simplify right side
    18,684.38x = 302,281,403.07
  5. Step 5: Solve for x
    x = 302,281,403.07/18,684.38
  6. Step 6: Final answer
    x = 16,178.29

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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.