Home / 26,172.80-39,246.06-12,120.74

Finding the Fourth Proportional to 26,172.80, 39,246.06 and 12,120.74

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Solution

The fourth proportional to 26,172.80, 39,246.06 and 12,120.74 is: 18,175.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,172.80 : 39,246.06 = 12,120.74 : x
  2. Step 2: Convert to fraction form
    26,172.80/39,246.06 = 12,120.74/x
  3. Step 3: Cross multiply
    26,172.80x = 39,246.06 × 12,120.74
  4. Step 4: Simplify right side
    26,172.80x = 475,691,289.28
  5. Step 5: Solve for x
    x = 475,691,289.28/26,172.80
  6. Step 6: Final answer
    x = 18,175.02

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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.