Home / 11,821.74-16,314.75-6,787.59

Finding the Fourth Proportional to 11,821.74, 16,314.75 and 6,787.59

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Solution

The fourth proportional to 11,821.74, 16,314.75 and 6,787.59 is: 9,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.74 : 16,314.75 = 6,787.59 : x
  2. Step 2: Convert to fraction form
    11,821.74/16,314.75 = 6,787.59/x
  3. Step 3: Cross multiply
    11,821.74x = 16,314.75 × 6,787.59
  4. Step 4: Simplify right side
    11,821.74x = 110,737,833.95
  5. Step 5: Solve for x
    x = 110,737,833.95/11,821.74
  6. Step 6: Final answer
    x = 9,367.30

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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.