Home / 14,227.20-21,292.20-12,477.60

Finding the Fourth Proportional to 14,227.20, 21,292.20 and 12,477.60

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Solution

The fourth proportional to 14,227.20, 21,292.20 and 12,477.60 is: 18,673.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,227.20 : 21,292.20 = 12,477.60 : x
  2. Step 2: Convert to fraction form
    14,227.20/21,292.20 = 12,477.60/x
  3. Step 3: Cross multiply
    14,227.20x = 21,292.20 × 12,477.60
  4. Step 4: Simplify right side
    14,227.20x = 265,675,554.72
  5. Step 5: Solve for x
    x = 265,675,554.72/14,227.20
  6. Step 6: Final answer
    x = 18,673.78

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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.