Home / 6,309.12-8,706.96-3,515.04

Finding the Fourth Proportional to 6,309.12, 8,706.96 and 3,515.04

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Solution

The fourth proportional to 6,309.12, 8,706.96 and 3,515.04 is: 4,850.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,309.12 : 8,706.96 = 3,515.04 : x
  2. Step 2: Convert to fraction form
    6,309.12/8,706.96 = 3,515.04/x
  3. Step 3: Cross multiply
    6,309.12x = 8,706.96 × 3,515.04
  4. Step 4: Simplify right side
    6,309.12x = 30,605,312.68
  5. Step 5: Solve for x
    x = 30,605,312.68/6,309.12
  6. Step 6: Final answer
    x = 4,850.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.