Home / 11,785.46-16,268.73-7,307.78

Finding the Fourth Proportional to 11,785.46, 16,268.73 and 7,307.78

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Solution

The fourth proportional to 11,785.46, 16,268.73 and 7,307.78 is: 10,087.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.46 : 16,268.73 = 7,307.78 : x
  2. Step 2: Convert to fraction form
    11,785.46/16,268.73 = 7,307.78/x
  3. Step 3: Cross multiply
    11,785.46x = 16,268.73 × 7,307.78
  4. Step 4: Simplify right side
    11,785.46x = 118,888,299.72
  5. Step 5: Solve for x
    x = 118,888,299.72/11,785.46
  6. Step 6: Final answer
    x = 10,087.71

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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.