Home / 18,734.14-28,118.22-9,976.42

Finding the Fourth Proportional to 18,734.14, 28,118.22 and 9,976.42

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Solution

The fourth proportional to 18,734.14, 28,118.22 and 9,976.42 is: 14,973.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,734.14 : 28,118.22 = 9,976.42 : x
  2. Step 2: Convert to fraction form
    18,734.14/28,118.22 = 9,976.42/x
  3. Step 3: Cross multiply
    18,734.14x = 28,118.22 × 9,976.42
  4. Step 4: Simplify right side
    18,734.14x = 280,519,172.37
  5. Step 5: Solve for x
    x = 280,519,172.37/18,734.14
  6. Step 6: Final answer
    x = 14,973.69

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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.