Home / 6,867.86-10,290.92-5,219.37

Finding the Fourth Proportional to 6,867.86, 10,290.92 and 5,219.37

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Solution

The fourth proportional to 6,867.86, 10,290.92 and 5,219.37 is: 7,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,867.86 : 10,290.92 = 5,219.37 : x
  2. Step 2: Convert to fraction form
    6,867.86/10,290.92 = 5,219.37/x
  3. Step 3: Cross multiply
    6,867.86x = 10,290.92 × 5,219.37
  4. Step 4: Simplify right side
    6,867.86x = 53,712,093.02
  5. Step 5: Solve for x
    x = 53,712,093.02/6,867.86
  6. Step 6: Final answer
    x = 7,820.80

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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.