Home / 11,818.09-16,311.32-6,785.71

Finding the Fourth Proportional to 11,818.09, 16,311.32 and 6,785.71

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Solution

The fourth proportional to 11,818.09, 16,311.32 and 6,785.71 is: 9,365.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.09 : 16,311.32 = 6,785.71 : x
  2. Step 2: Convert to fraction form
    11,818.09/16,311.32 = 6,785.71/x
  3. Step 3: Cross multiply
    11,818.09x = 16,311.32 × 6,785.71
  4. Step 4: Simplify right side
    11,818.09x = 110,683,887.24
  5. Step 5: Solve for x
    x = 110,683,887.24/11,818.09
  6. Step 6: Final answer
    x = 9,365.63

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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.