Home / 11,938.37-17,908.68-4,918.85

Finding the Fourth Proportional to 11,938.37, 17,908.68 and 4,918.85

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Solution

The fourth proportional to 11,938.37, 17,908.68 and 4,918.85 is: 7,378.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.37 : 17,908.68 = 4,918.85 : x
  2. Step 2: Convert to fraction form
    11,938.37/17,908.68 = 4,918.85/x
  3. Step 3: Cross multiply
    11,938.37x = 17,908.68 × 4,918.85
  4. Step 4: Simplify right side
    11,938.37x = 88,090,106.68
  5. Step 5: Solve for x
    x = 88,090,106.68/11,938.37
  6. Step 6: Final answer
    x = 7,378.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.