Home / 6,365.36-8,782.04-4,128.96

Finding the Fourth Proportional to 6,365.36, 8,782.04 and 4,128.96

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Solution

The fourth proportional to 6,365.36, 8,782.04 and 4,128.96 is: 5,696.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,365.36 : 8,782.04 = 4,128.96 : x
  2. Step 2: Convert to fraction form
    6,365.36/8,782.04 = 4,128.96/x
  3. Step 3: Cross multiply
    6,365.36x = 8,782.04 × 4,128.96
  4. Step 4: Simplify right side
    6,365.36x = 36,260,691.88
  5. Step 5: Solve for x
    x = 36,260,691.88/6,365.36
  6. Step 6: Final answer
    x = 5,696.57

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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.