Home / 12,486.04-18,729.60-4,166.80

Finding the Fourth Proportional to 12,486.04, 18,729.60 and 4,166.80

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Solution

The fourth proportional to 12,486.04, 18,729.60 and 4,166.80 is: 6,250.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.04 : 18,729.60 = 4,166.80 : x
  2. Step 2: Convert to fraction form
    12,486.04/18,729.60 = 4,166.80/x
  3. Step 3: Cross multiply
    12,486.04x = 18,729.60 × 4,166.80
  4. Step 4: Simplify right side
    12,486.04x = 78,042,497.28
  5. Step 5: Solve for x
    x = 78,042,497.28/12,486.04
  6. Step 6: Final answer
    x = 6,250.38

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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.