Home / 12,537.95-18,806.99-3,772.80

Finding the Fourth Proportional to 12,537.95, 18,806.99 and 3,772.80

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Solution

The fourth proportional to 12,537.95, 18,806.99 and 3,772.80 is: 5,659.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,537.95 : 18,806.99 = 3,772.80 : x
  2. Step 2: Convert to fraction form
    12,537.95/18,806.99 = 3,772.80/x
  3. Step 3: Cross multiply
    12,537.95x = 18,806.99 × 3,772.80
  4. Step 4: Simplify right side
    12,537.95x = 70,954,993.01
  5. Step 5: Solve for x
    x = 70,954,993.01/12,537.95
  6. Step 6: Final answer
    x = 5,659.22

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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.