Home / 13,775.98-20,685.04-12,146.26

Finding the Fourth Proportional to 13,775.98, 20,685.04 and 12,146.26

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Solution

The fourth proportional to 13,775.98, 20,685.04 and 12,146.26 is: 18,237.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.98 : 20,685.04 = 12,146.26 : x
  2. Step 2: Convert to fraction form
    13,775.98/20,685.04 = 12,146.26/x
  3. Step 3: Cross multiply
    13,775.98x = 20,685.04 × 12,146.26
  4. Step 4: Simplify right side
    13,775.98x = 251,245,873.95
  5. Step 5: Solve for x
    x = 251,245,873.95/13,775.98
  6. Step 6: Final answer
    x = 18,237.97

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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.