Home / 11,684.40-16,124.70-6,379.24

Finding the Fourth Proportional to 11,684.40, 16,124.70 and 6,379.24

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Solution

The fourth proportional to 11,684.40, 16,124.70 and 6,379.24 is: 8,803.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,684.40 : 16,124.70 = 6,379.24 : x
  2. Step 2: Convert to fraction form
    11,684.40/16,124.70 = 6,379.24/x
  3. Step 3: Cross multiply
    11,684.40x = 16,124.70 × 6,379.24
  4. Step 4: Simplify right side
    11,684.40x = 102,863,250.60
  5. Step 5: Solve for x
    x = 102,863,250.60/11,684.40
  6. Step 6: Final answer
    x = 8,803.47

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Double scale
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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.