Home / 7,861.23-11,777.94-4,155.24

Finding the Fourth Proportional to 7,861.23, 11,777.94 and 4,155.24

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Solution

The fourth proportional to 7,861.23, 11,777.94 and 4,155.24 is: 6,225.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.23 : 11,777.94 = 4,155.24 : x
  2. Step 2: Convert to fraction form
    7,861.23/11,777.94 = 4,155.24/x
  3. Step 3: Cross multiply
    7,861.23x = 11,777.94 × 4,155.24
  4. Step 4: Simplify right side
    7,861.23x = 48,940,167.41
  5. Step 5: Solve for x
    x = 48,940,167.41/7,861.23
  6. Step 6: Final answer
    x = 6,225.51

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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.