Home / 8,620.56-11,895.09-4,986.49

Finding the Fourth Proportional to 8,620.56, 11,895.09 and 4,986.49

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Solution

The fourth proportional to 8,620.56, 11,895.09 and 4,986.49 is: 6,880.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.56 : 11,895.09 = 4,986.49 : x
  2. Step 2: Convert to fraction form
    8,620.56/11,895.09 = 4,986.49/x
  3. Step 3: Cross multiply
    8,620.56x = 11,895.09 × 4,986.49
  4. Step 4: Simplify right side
    8,620.56x = 59,314,771.55
  5. Step 5: Solve for x
    x = 59,314,771.55/8,620.56
  6. Step 6: Final answer
    x = 6,880.62

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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.