Home / 14,623.92-20,172.33-8,961.21

Finding the Fourth Proportional to 14,623.92, 20,172.33 and 8,961.21

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Solution

The fourth proportional to 14,623.92, 20,172.33 and 8,961.21 is: 12,361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,623.92 : 20,172.33 = 8,961.21 : x
  2. Step 2: Convert to fraction form
    14,623.92/20,172.33 = 8,961.21/x
  3. Step 3: Cross multiply
    14,623.92x = 20,172.33 × 8,961.21
  4. Step 4: Simplify right side
    14,623.92x = 180,768,485.32
  5. Step 5: Solve for x
    x = 180,768,485.32/14,623.92
  6. Step 6: Final answer
    x = 12,361.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.