Home / 11,684.29-16,124.05-6,379.20

Finding the Fourth Proportional to 11,684.29, 16,124.05 and 6,379.20

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Solution

The fourth proportional to 11,684.29, 16,124.05 and 6,379.20 is: 8,803.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,684.29 : 16,124.05 = 6,379.20 : x
  2. Step 2: Convert to fraction form
    11,684.29/16,124.05 = 6,379.20/x
  3. Step 3: Cross multiply
    11,684.29x = 16,124.05 × 6,379.20
  4. Step 4: Simplify right side
    11,684.29x = 102,858,539.76
  5. Step 5: Solve for x
    x = 102,858,539.76/11,684.29
  6. Step 6: Final answer
    x = 8,803.15

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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.