Home / 14,171.63-21,261.24-12,622.28

Finding the Fourth Proportional to 14,171.63, 21,261.24 and 12,622.28

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Solution

The fourth proportional to 14,171.63, 21,261.24 and 12,622.28 is: 18,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,171.63 : 21,261.24 = 12,622.28 : x
  2. Step 2: Convert to fraction form
    14,171.63/21,261.24 = 12,622.28/x
  3. Step 3: Cross multiply
    14,171.63x = 21,261.24 × 12,622.28
  4. Step 4: Simplify right side
    14,171.63x = 268,365,218.12
  5. Step 5: Solve for x
    x = 268,365,218.12/14,171.63
  6. Step 6: Final answer
    x = 18,936.80

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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.