Home / 11,766.42-16,237.59-6,388.74

Finding the Fourth Proportional to 11,766.42, 16,237.59 and 6,388.74

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Solution

The fourth proportional to 11,766.42, 16,237.59 and 6,388.74 is: 8,816.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,766.42 : 16,237.59 = 6,388.74 : x
  2. Step 2: Convert to fraction form
    11,766.42/16,237.59 = 6,388.74/x
  3. Step 3: Cross multiply
    11,766.42x = 16,237.59 × 6,388.74
  4. Step 4: Simplify right side
    11,766.42x = 103,737,740.74
  5. Step 5: Solve for x
    x = 103,737,740.74/11,766.42
  6. Step 6: Final answer
    x = 8,816.42

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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.