Home / 8,220.86-11,344.80-4,684.16

Finding the Fourth Proportional to 8,220.86, 11,344.80 and 4,684.16

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Solution

The fourth proportional to 8,220.86, 11,344.80 and 4,684.16 is: 6,464.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.86 : 11,344.80 = 4,684.16 : x
  2. Step 2: Convert to fraction form
    8,220.86/11,344.80 = 4,684.16/x
  3. Step 3: Cross multiply
    8,220.86x = 11,344.80 × 4,684.16
  4. Step 4: Simplify right side
    8,220.86x = 53,140,858.37
  5. Step 5: Solve for x
    x = 53,140,858.37/8,220.86
  6. Step 6: Final answer
    x = 6,464.15

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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.