Home / 11,728.11-16,185.89-6,423.73

Finding the Fourth Proportional to 11,728.11, 16,185.89 and 6,423.73

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Solution

The fourth proportional to 11,728.11, 16,185.89 and 6,423.73 is: 8,865.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,728.11 : 16,185.89 = 6,423.73 : x
  2. Step 2: Convert to fraction form
    11,728.11/16,185.89 = 6,423.73/x
  3. Step 3: Cross multiply
    11,728.11x = 16,185.89 × 6,423.73
  4. Step 4: Simplify right side
    11,728.11x = 103,973,787.17
  5. Step 5: Solve for x
    x = 103,973,787.17/11,728.11
  6. Step 6: Final answer
    x = 8,865.35

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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.