Home / 6,815.16-9,405.18-4,163.76

Finding the Fourth Proportional to 6,815.16, 9,405.18 and 4,163.76

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Solution

The fourth proportional to 6,815.16, 9,405.18 and 4,163.76 is: 5,746.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.16 : 9,405.18 = 4,163.76 : x
  2. Step 2: Convert to fraction form
    6,815.16/9,405.18 = 4,163.76/x
  3. Step 3: Cross multiply
    6,815.16x = 9,405.18 × 4,163.76
  4. Step 4: Simplify right side
    6,815.16x = 39,160,912.28
  5. Step 5: Solve for x
    x = 39,160,912.28/6,815.16
  6. Step 6: Final answer
    x = 5,746.15

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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.