Home / 14,122.62-21,142.32-12,371.04

Finding the Fourth Proportional to 14,122.62, 21,142.32 and 12,371.04

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Solution

The fourth proportional to 14,122.62, 21,142.32 and 12,371.04 is: 18,520.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.62 : 21,142.32 = 12,371.04 : x
  2. Step 2: Convert to fraction form
    14,122.62/21,142.32 = 12,371.04/x
  3. Step 3: Cross multiply
    14,122.62x = 21,142.32 × 12,371.04
  4. Step 4: Simplify right side
    14,122.62x = 261,552,486.41
  5. Step 5: Solve for x
    x = 261,552,486.41/14,122.62
  6. Step 6: Final answer
    x = 18,520.11

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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.