Home / 7,677.86-11,456.87-6,850.44

Finding the Fourth Proportional to 7,677.86, 11,456.87 and 6,850.44

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Solution

The fourth proportional to 7,677.86, 11,456.87 and 6,850.44 is: 10,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,677.86 : 11,456.87 = 6,850.44 : x
  2. Step 2: Convert to fraction form
    7,677.86/11,456.87 = 6,850.44/x
  3. Step 3: Cross multiply
    7,677.86x = 11,456.87 × 6,850.44
  4. Step 4: Simplify right side
    7,677.86x = 78,484,566.27
  5. Step 5: Solve for x
    x = 78,484,566.27/7,677.86
  6. Step 6: Final answer
    x = 10,222.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.