Home / 11,683.83-16,123.47-6,378.69

Finding the Fourth Proportional to 11,683.83, 16,123.47 and 6,378.69

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Solution

The fourth proportional to 11,683.83, 16,123.47 and 6,378.69 is: 8,802.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,683.83 : 16,123.47 = 6,378.69 : x
  2. Step 2: Convert to fraction form
    11,683.83/16,123.47 = 6,378.69/x
  3. Step 3: Cross multiply
    11,683.83x = 16,123.47 × 6,378.69
  4. Step 4: Simplify right side
    11,683.83x = 102,846,616.85
  5. Step 5: Solve for x
    x = 102,846,616.85/11,683.83
  6. Step 6: Final answer
    x = 8,802.47

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Half scale
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Double scale
Find fourth proportional to 11,684.83, 16,124.85 and 6,379.69
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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.