Home / 11,780.68-17,665.32-6,851.64

Finding the Fourth Proportional to 11,780.68, 17,665.32 and 6,851.64

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Solution

The fourth proportional to 11,780.68, 17,665.32 and 6,851.64 is: 10,274.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.68 : 17,665.32 = 6,851.64 : x
  2. Step 2: Convert to fraction form
    11,780.68/17,665.32 = 6,851.64/x
  3. Step 3: Cross multiply
    11,780.68x = 17,665.32 × 6,851.64
  4. Step 4: Simplify right side
    11,780.68x = 121,036,413.12
  5. Step 5: Solve for x
    x = 121,036,413.12/11,780.68
  6. Step 6: Final answer
    x = 10,274.14

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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.