Home / 6,765.19-10,143.73-2,811.68

Finding the Fourth Proportional to 6,765.19, 10,143.73 and 2,811.68

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Solution

The fourth proportional to 6,765.19, 10,143.73 and 2,811.68 is: 4,215.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,765.19 : 10,143.73 = 2,811.68 : x
  2. Step 2: Convert to fraction form
    6,765.19/10,143.73 = 2,811.68/x
  3. Step 3: Cross multiply
    6,765.19x = 10,143.73 × 2,811.68
  4. Step 4: Simplify right side
    6,765.19x = 28,520,913.60
  5. Step 5: Solve for x
    x = 28,520,913.60/6,765.19
  6. Step 6: Final answer
    x = 4,215.83

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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.