Home / 12,450.37-18,677.82-4,130.45

Finding the Fourth Proportional to 12,450.37, 18,677.82 and 4,130.45

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Solution

The fourth proportional to 12,450.37, 18,677.82 and 4,130.45 is: 6,196.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.37 : 18,677.82 = 4,130.45 : x
  2. Step 2: Convert to fraction form
    12,450.37/18,677.82 = 4,130.45/x
  3. Step 3: Cross multiply
    12,450.37x = 18,677.82 × 4,130.45
  4. Step 4: Simplify right side
    12,450.37x = 77,147,801.62
  5. Step 5: Solve for x
    x = 77,147,801.62/12,450.37
  6. Step 6: Final answer
    x = 6,196.43

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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.