Home / 11,683.35-16,122.90-6,378.12

Finding the Fourth Proportional to 11,683.35, 16,122.90 and 6,378.12

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Solution

The fourth proportional to 11,683.35, 16,122.90 and 6,378.12 is: 8,801.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,683.35 : 16,122.90 = 6,378.12 : x
  2. Step 2: Convert to fraction form
    11,683.35/16,122.90 = 6,378.12/x
  3. Step 3: Cross multiply
    11,683.35x = 16,122.90 × 6,378.12
  4. Step 4: Simplify right side
    11,683.35x = 102,833,790.95
  5. Step 5: Solve for x
    x = 102,833,790.95/11,683.35
  6. Step 6: Final answer
    x = 8,801.74

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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.