Home / 7,968.09-11,953.50-2,421.99

Finding the Fourth Proportional to 7,968.09, 11,953.50 and 2,421.99

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Solution

The fourth proportional to 7,968.09, 11,953.50 and 2,421.99 is: 3,633.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968.09 : 11,953.50 = 2,421.99 : x
  2. Step 2: Convert to fraction form
    7,968.09/11,953.50 = 2,421.99/x
  3. Step 3: Cross multiply
    7,968.09x = 11,953.50 × 2,421.99
  4. Step 4: Simplify right side
    7,968.09x = 28,951,257.47
  5. Step 5: Solve for x
    x = 28,951,257.47/7,968.09
  6. Step 6: Final answer
    x = 3,633.40

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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.