Home / 6,855.22-10,278.48-5,815.58

Finding the Fourth Proportional to 6,855.22, 10,278.48 and 5,815.58

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Solution

The fourth proportional to 6,855.22, 10,278.48 and 5,815.58 is: 8,719.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,855.22 : 10,278.48 = 5,815.58 : x
  2. Step 2: Convert to fraction form
    6,855.22/10,278.48 = 5,815.58/x
  3. Step 3: Cross multiply
    6,855.22x = 10,278.48 × 5,815.58
  4. Step 4: Simplify right side
    6,855.22x = 59,775,322.72
  5. Step 5: Solve for x
    x = 59,775,322.72/6,855.22
  6. Step 6: Final answer
    x = 8,719.68

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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.