Home / 6,818.64-9,405.63-4,161.43

Finding the Fourth Proportional to 6,818.64, 9,405.63 and 4,161.43

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Solution

The fourth proportional to 6,818.64, 9,405.63 and 4,161.43 is: 5,740.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,818.64 : 9,405.63 = 4,161.43 : x
  2. Step 2: Convert to fraction form
    6,818.64/9,405.63 = 4,161.43/x
  3. Step 3: Cross multiply
    6,818.64x = 9,405.63 × 4,161.43
  4. Step 4: Simplify right side
    6,818.64x = 39,140,870.85
  5. Step 5: Solve for x
    x = 39,140,870.85/6,818.64
  6. Step 6: Final answer
    x = 5,740.28

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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.