Home / 19,214.63-28,824.93-8,121.37

Finding the Fourth Proportional to 19,214.63, 28,824.93 and 8,121.37

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Solution

The fourth proportional to 19,214.63, 28,824.93 and 8,121.37 is: 12,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,214.63 : 28,824.93 = 8,121.37 : x
  2. Step 2: Convert to fraction form
    19,214.63/28,824.93 = 8,121.37/x
  3. Step 3: Cross multiply
    19,214.63x = 28,824.93 × 8,121.37
  4. Step 4: Simplify right side
    19,214.63x = 234,097,921.75
  5. Step 5: Solve for x
    x = 234,097,921.75/19,214.63
  6. Step 6: Final answer
    x = 12,183.32

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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.