Home / 11,684.91-16,124.95-6,379.76

Finding the Fourth Proportional to 11,684.91, 16,124.95 and 6,379.76

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Solution

The fourth proportional to 11,684.91, 16,124.95 and 6,379.76 is: 8,803.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,684.91 : 16,124.95 = 6,379.76 : x
  2. Step 2: Convert to fraction form
    11,684.91/16,124.95 = 6,379.76/x
  3. Step 3: Cross multiply
    11,684.91x = 16,124.95 × 6,379.76
  4. Step 4: Simplify right side
    11,684.91x = 102,873,341.36
  5. Step 5: Solve for x
    x = 102,873,341.36/11,684.91
  6. Step 6: Final answer
    x = 8,803.95

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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.