Home / 14,391.56-21,486.39-12,177.83

Finding the Fourth Proportional to 14,391.56, 21,486.39 and 12,177.83

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Solution

The fourth proportional to 14,391.56, 21,486.39 and 12,177.83 is: 18,181.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.56 : 21,486.39 = 12,177.83 : x
  2. Step 2: Convert to fraction form
    14,391.56/21,486.39 = 12,177.83/x
  3. Step 3: Cross multiply
    14,391.56x = 21,486.39 × 12,177.83
  4. Step 4: Simplify right side
    14,391.56x = 261,657,604.73
  5. Step 5: Solve for x
    x = 261,657,604.73/14,391.56
  6. Step 6: Final answer
    x = 18,181.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.