Home / 19,316.20-28,940.70-8,906.60

Finding the Fourth Proportional to 19,316.20, 28,940.70 and 8,906.60

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Solution

The fourth proportional to 19,316.20, 28,940.70 and 8,906.60 is: 13,344.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,316.20 : 28,940.70 = 8,906.60 : x
  2. Step 2: Convert to fraction form
    19,316.20/28,940.70 = 8,906.60/x
  3. Step 3: Cross multiply
    19,316.20x = 28,940.70 × 8,906.60
  4. Step 4: Simplify right side
    19,316.20x = 257,763,238.62
  5. Step 5: Solve for x
    x = 257,763,238.62/19,316.20
  6. Step 6: Final answer
    x = 13,344.41

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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.