Home / 11,977.55-17,968.49-4,953.75

Finding the Fourth Proportional to 11,977.55, 17,968.49 and 4,953.75

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Solution

The fourth proportional to 11,977.55, 17,968.49 and 4,953.75 is: 7,431.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.55 : 17,968.49 = 4,953.75 : x
  2. Step 2: Convert to fraction form
    11,977.55/17,968.49 = 4,953.75/x
  3. Step 3: Cross multiply
    11,977.55x = 17,968.49 × 4,953.75
  4. Step 4: Simplify right side
    11,977.55x = 89,011,333.76
  5. Step 5: Solve for x
    x = 89,011,333.76/11,977.55
  6. Step 6: Final answer
    x = 7,431.52

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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.