Home / 12,450.52-18,678.01-4,131.04

Finding the Fourth Proportional to 12,450.52, 18,678.01 and 4,131.04

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Solution

The fourth proportional to 12,450.52, 18,678.01 and 4,131.04 is: 6,197.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.52 : 18,678.01 = 4,131.04 : x
  2. Step 2: Convert to fraction form
    12,450.52/18,678.01 = 4,131.04/x
  3. Step 3: Cross multiply
    12,450.52x = 18,678.01 × 4,131.04
  4. Step 4: Simplify right side
    12,450.52x = 77,159,548.48
  5. Step 5: Solve for x
    x = 77,159,548.48/12,450.52
  6. Step 6: Final answer
    x = 6,197.29

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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.