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Finding the Fourth Proportional to 11,809, 16,303.16 and 7,835.56

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Solution

The fourth proportional to 11,809, 16,303.16 and 7,835.56 is: 10,817.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809 : 16,303.16 = 7,835.56 : x
  2. Step 2: Convert to fraction form
    11,809/16,303.16 = 7,835.56/x
  3. Step 3: Cross multiply
    11,809x = 16,303.16 × 7,835.56
  4. Step 4: Simplify right side
    11,809x = 127,744,388.37
  5. Step 5: Solve for x
    x = 127,744,388.37/11,809
  6. Step 6: Final answer
    x = 10,817.54

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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.