Home / 6,342.09-8,755.14-4,221.15

Finding the Fourth Proportional to 6,342.09, 8,755.14 and 4,221.15

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Solution

The fourth proportional to 6,342.09, 8,755.14 and 4,221.15 is: 5,827.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,342.09 : 8,755.14 = 4,221.15 : x
  2. Step 2: Convert to fraction form
    6,342.09/8,755.14 = 4,221.15/x
  3. Step 3: Cross multiply
    6,342.09x = 8,755.14 × 4,221.15
  4. Step 4: Simplify right side
    6,342.09x = 36,956,759.21
  5. Step 5: Solve for x
    x = 36,956,759.21/6,342.09
  6. Step 6: Final answer
    x = 5,827.22

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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.