Home / 8,391.80-11,579.99-4,941.84

Finding the Fourth Proportional to 8,391.80, 11,579.99 and 4,941.84

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Solution

The fourth proportional to 8,391.80, 11,579.99 and 4,941.84 is: 6,819.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.80 : 11,579.99 = 4,941.84 : x
  2. Step 2: Convert to fraction form
    8,391.80/11,579.99 = 4,941.84/x
  3. Step 3: Cross multiply
    8,391.80x = 11,579.99 × 4,941.84
  4. Step 4: Simplify right side
    8,391.80x = 57,226,433.07
  5. Step 5: Solve for x
    x = 57,226,433.07/8,391.80
  6. Step 6: Final answer
    x = 6,819.33

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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.