Home / 12,172.91-18,260.41-4,274.75

Finding the Fourth Proportional to 12,172.91, 18,260.41 and 4,274.75

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Solution

The fourth proportional to 12,172.91, 18,260.41 and 4,274.75 is: 6,412.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.91 : 18,260.41 = 4,274.75 : x
  2. Step 2: Convert to fraction form
    12,172.91/18,260.41 = 4,274.75/x
  3. Step 3: Cross multiply
    12,172.91x = 18,260.41 × 4,274.75
  4. Step 4: Simplify right side
    12,172.91x = 78,058,596.35
  5. Step 5: Solve for x
    x = 78,058,596.35/12,172.91
  6. Step 6: Final answer
    x = 6,412.48

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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.