Home / 12,629.55-18,940.80-3,746.82

Finding the Fourth Proportional to 12,629.55, 18,940.80 and 3,746.82

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Solution

The fourth proportional to 12,629.55, 18,940.80 and 3,746.82 is: 5,619.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.55 : 18,940.80 = 3,746.82 : x
  2. Step 2: Convert to fraction form
    12,629.55/18,940.80 = 3,746.82/x
  3. Step 3: Cross multiply
    12,629.55x = 18,940.80 × 3,746.82
  4. Step 4: Simplify right side
    12,629.55x = 70,967,768.26
  5. Step 5: Solve for x
    x = 70,967,768.26/12,629.55
  6. Step 6: Final answer
    x = 5,619.18

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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.