Home / 12,621.23-18,930.33-5,224.80

Finding the Fourth Proportional to 12,621.23, 18,930.33 and 5,224.80

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Solution

The fourth proportional to 12,621.23, 18,930.33 and 5,224.80 is: 7,836.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.23 : 18,930.33 = 5,224.80 : x
  2. Step 2: Convert to fraction form
    12,621.23/18,930.33 = 5,224.80/x
  3. Step 3: Cross multiply
    12,621.23x = 18,930.33 × 5,224.80
  4. Step 4: Simplify right side
    12,621.23x = 98,907,188.18
  5. Step 5: Solve for x
    x = 98,907,188.18/12,621.23
  6. Step 6: Final answer
    x = 7,836.57

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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.