Home / 12,137.37-18,198.50-5,113.77

Finding the Fourth Proportional to 12,137.37, 18,198.50 and 5,113.77

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Solution

The fourth proportional to 12,137.37, 18,198.50 and 5,113.77 is: 7,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.37 : 18,198.50 = 5,113.77 : x
  2. Step 2: Convert to fraction form
    12,137.37/18,198.50 = 5,113.77/x
  3. Step 3: Cross multiply
    12,137.37x = 18,198.50 × 5,113.77
  4. Step 4: Simplify right side
    12,137.37x = 93,062,943.35
  5. Step 5: Solve for x
    x = 93,062,943.35/12,137.37
  6. Step 6: Final answer
    x = 7,667.47

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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.