Home / 12,255.24-18,382.98-4,861.48

Finding the Fourth Proportional to 12,255.24, 18,382.98 and 4,861.48

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Solution

The fourth proportional to 12,255.24, 18,382.98 and 4,861.48 is: 7,292.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.24 : 18,382.98 = 4,861.48 : x
  2. Step 2: Convert to fraction form
    12,255.24/18,382.98 = 4,861.48/x
  3. Step 3: Cross multiply
    12,255.24x = 18,382.98 × 4,861.48
  4. Step 4: Simplify right side
    12,255.24x = 89,368,489.61
  5. Step 5: Solve for x
    x = 89,368,489.61/12,255.24
  6. Step 6: Final answer
    x = 7,292.27

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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.