Home / 7,418.09-11,129.47-4,640.94

Finding the Fourth Proportional to 7,418.09, 11,129.47 and 4,640.94

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Solution

The fourth proportional to 7,418.09, 11,129.47 and 4,640.94 is: 6,962.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.09 : 11,129.47 = 4,640.94 : x
  2. Step 2: Convert to fraction form
    7,418.09/11,129.47 = 4,640.94/x
  3. Step 3: Cross multiply
    7,418.09x = 11,129.47 × 4,640.94
  4. Step 4: Simplify right side
    7,418.09x = 51,651,190.90
  5. Step 5: Solve for x
    x = 51,651,190.90/7,418.09
  6. Step 6: Final answer
    x = 6,962.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.