Home / 26,905.45-40,355.45-7,186

Finding the Fourth Proportional to 26,905.45, 40,355.45 and 7,186

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Solution

The fourth proportional to 26,905.45, 40,355.45 and 7,186 is: 10,778.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,905.45 : 40,355.45 = 7,186 : x
  2. Step 2: Convert to fraction form
    26,905.45/40,355.45 = 7,186/x
  3. Step 3: Cross multiply
    26,905.45x = 40,355.45 × 7,186
  4. Step 4: Simplify right side
    26,905.45x = 289,994,263.70
  5. Step 5: Solve for x
    x = 289,994,263.70/26,905.45
  6. Step 6: Final answer
    x = 10,778.27

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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.