Home / 14,102.19-21,112.11-12,222.36

Finding the Fourth Proportional to 14,102.19, 21,112.11 and 12,222.36

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Solution

The fourth proportional to 14,102.19, 21,112.11 and 12,222.36 is: 18,297.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,102.19 : 21,112.11 = 12,222.36 : x
  2. Step 2: Convert to fraction form
    14,102.19/21,112.11 = 12,222.36/x
  3. Step 3: Cross multiply
    14,102.19x = 21,112.11 × 12,222.36
  4. Step 4: Simplify right side
    14,102.19x = 258,039,808.78
  5. Step 5: Solve for x
    x = 258,039,808.78/14,102.19
  6. Step 6: Final answer
    x = 18,297.85

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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.