Home / 12,091.15-16,685.78-6,787.67

Finding the Fourth Proportional to 12,091.15, 16,685.78 and 6,787.67

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Solution

The fourth proportional to 12,091.15, 16,685.78 and 6,787.67 is: 9,366.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,091.15 : 16,685.78 = 6,787.67 : x
  2. Step 2: Convert to fraction form
    12,091.15/16,685.78 = 6,787.67/x
  3. Step 3: Cross multiply
    12,091.15x = 16,685.78 × 6,787.67
  4. Step 4: Simplify right side
    12,091.15x = 113,257,658.57
  5. Step 5: Solve for x
    x = 113,257,658.57/12,091.15
  6. Step 6: Final answer
    x = 9,366.99

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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.