Home / 6,855.12-10,291.68-4,399.92

Finding the Fourth Proportional to 6,855.12, 10,291.68 and 4,399.92

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Solution

The fourth proportional to 6,855.12, 10,291.68 and 4,399.92 is: 6,605.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,855.12 : 10,291.68 = 4,399.92 : x
  2. Step 2: Convert to fraction form
    6,855.12/10,291.68 = 4,399.92/x
  3. Step 3: Cross multiply
    6,855.12x = 10,291.68 × 4,399.92
  4. Step 4: Simplify right side
    6,855.12x = 45,282,568.67
  5. Step 5: Solve for x
    x = 45,282,568.67/6,855.12
  6. Step 6: Final answer
    x = 6,605.66

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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.