Home / 14,123.22-21,211.17-12,435.21

Finding the Fourth Proportional to 14,123.22, 21,211.17 and 12,435.21

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Solution

The fourth proportional to 14,123.22, 21,211.17 and 12,435.21 is: 18,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.22 : 21,211.17 = 12,435.21 : x
  2. Step 2: Convert to fraction form
    14,123.22/21,211.17 = 12,435.21/x
  3. Step 3: Cross multiply
    14,123.22x = 21,211.17 × 12,435.21
  4. Step 4: Simplify right side
    14,123.22x = 263,765,353.30
  5. Step 5: Solve for x
    x = 263,765,353.30/14,123.22
  6. Step 6: Final answer
    x = 18,676.01

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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.