Home / 12,872.37-19,311.39-7,328.33

Finding the Fourth Proportional to 12,872.37, 19,311.39 and 7,328.33

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Solution

The fourth proportional to 12,872.37, 19,311.39 and 7,328.33 is: 10,994.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872.37 : 19,311.39 = 7,328.33 : x
  2. Step 2: Convert to fraction form
    12,872.37/19,311.39 = 7,328.33/x
  3. Step 3: Cross multiply
    12,872.37x = 19,311.39 × 7,328.33
  4. Step 4: Simplify right side
    12,872.37x = 141,520,238.68
  5. Step 5: Solve for x
    x = 141,520,238.68/12,872.37
  6. Step 6: Final answer
    x = 10,994.11

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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.