Home / 11,685.06-16,124.67-6,379.56

Finding the Fourth Proportional to 11,685.06, 16,124.67 and 6,379.56

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Solution

The fourth proportional to 11,685.06, 16,124.67 and 6,379.56 is: 8,803.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.06 : 16,124.67 = 6,379.56 : x
  2. Step 2: Convert to fraction form
    11,685.06/16,124.67 = 6,379.56/x
  3. Step 3: Cross multiply
    11,685.06x = 16,124.67 × 6,379.56
  4. Step 4: Simplify right side
    11,685.06x = 102,868,299.75
  5. Step 5: Solve for x
    x = 102,868,299.75/11,685.06
  6. Step 6: Final answer
    x = 8,803.40

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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.