Home / 8,311.22-11,484.69-7,906.26

Finding the Fourth Proportional to 8,311.22, 11,484.69 and 7,906.26

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Solution

The fourth proportional to 8,311.22, 11,484.69 and 7,906.26 is: 10,925.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.22 : 11,484.69 = 7,906.26 : x
  2. Step 2: Convert to fraction form
    8,311.22/11,484.69 = 7,906.26/x
  3. Step 3: Cross multiply
    8,311.22x = 11,484.69 × 7,906.26
  4. Step 4: Simplify right side
    8,311.22x = 90,800,945.16
  5. Step 5: Solve for x
    x = 90,800,945.16/8,311.22
  6. Step 6: Final answer
    x = 10,925.10

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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.