Home / 11,620.35-17,424.76-4,955.81

Finding the Fourth Proportional to 11,620.35, 17,424.76 and 4,955.81

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Solution

The fourth proportional to 11,620.35, 17,424.76 and 4,955.81 is: 7,431.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.35 : 17,424.76 = 4,955.81 : x
  2. Step 2: Convert to fraction form
    11,620.35/17,424.76 = 4,955.81/x
  3. Step 3: Cross multiply
    11,620.35x = 17,424.76 × 4,955.81
  4. Step 4: Simplify right side
    11,620.35x = 86,353,709.63
  5. Step 5: Solve for x
    x = 86,353,709.63/11,620.35
  6. Step 6: Final answer
    x = 7,431.25

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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.