Home / 18,855.90-26,022.74-12,137.36

Finding the Fourth Proportional to 18,855.90, 26,022.74 and 12,137.36

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Solution

The fourth proportional to 18,855.90, 26,022.74 and 12,137.36 is: 16,750.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855.90 : 26,022.74 = 12,137.36 : x
  2. Step 2: Convert to fraction form
    18,855.90/26,022.74 = 12,137.36/x
  3. Step 3: Cross multiply
    18,855.90x = 26,022.74 × 12,137.36
  4. Step 4: Simplify right side
    18,855.90x = 315,847,172.77
  5. Step 5: Solve for x
    x = 315,847,172.77/18,855.90
  6. Step 6: Final answer
    x = 16,750.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.