Home / 14,427.24-21,640.74-8,190.12

Finding the Fourth Proportional to 14,427.24, 21,640.74 and 8,190.12

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Solution

The fourth proportional to 14,427.24, 21,640.74 and 8,190.12 is: 12,285.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,427.24 : 21,640.74 = 8,190.12 : x
  2. Step 2: Convert to fraction form
    14,427.24/21,640.74 = 8,190.12/x
  3. Step 3: Cross multiply
    14,427.24x = 21,640.74 × 8,190.12
  4. Step 4: Simplify right side
    14,427.24x = 177,240,257.49
  5. Step 5: Solve for x
    x = 177,240,257.49/14,427.24
  6. Step 6: Final answer
    x = 12,285.11

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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.