Home / 7,885.55-11,832.92-4,378.49

Finding the Fourth Proportional to 7,885.55, 11,832.92 and 4,378.49

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Solution

The fourth proportional to 7,885.55, 11,832.92 and 4,378.49 is: 6,570.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.55 : 11,832.92 = 4,378.49 : x
  2. Step 2: Convert to fraction form
    7,885.55/11,832.92 = 4,378.49/x
  3. Step 3: Cross multiply
    7,885.55x = 11,832.92 × 4,378.49
  4. Step 4: Simplify right side
    7,885.55x = 51,810,321.89
  5. Step 5: Solve for x
    x = 51,810,321.89/7,885.55
  6. Step 6: Final answer
    x = 6,570.29

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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.