Home / 11,231.68-16,840.32-4,662.40

Finding the Fourth Proportional to 11,231.68, 16,840.32 and 4,662.40

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Solution

The fourth proportional to 11,231.68, 16,840.32 and 4,662.40 is: 6,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,231.68 : 16,840.32 = 4,662.40 : x
  2. Step 2: Convert to fraction form
    11,231.68/16,840.32 = 4,662.40/x
  3. Step 3: Cross multiply
    11,231.68x = 16,840.32 × 4,662.40
  4. Step 4: Simplify right side
    11,231.68x = 78,516,307.97
  5. Step 5: Solve for x
    x = 78,516,307.97/11,231.68
  6. Step 6: Final answer
    x = 6,990.61

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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.