Home / 11,768.63-17,655.12-3,871.58

Finding the Fourth Proportional to 11,768.63, 17,655.12 and 3,871.58

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Solution

The fourth proportional to 11,768.63, 17,655.12 and 3,871.58 is: 5,808.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,768.63 : 17,655.12 = 3,871.58 : x
  2. Step 2: Convert to fraction form
    11,768.63/17,655.12 = 3,871.58/x
  3. Step 3: Cross multiply
    11,768.63x = 17,655.12 × 3,871.58
  4. Step 4: Simplify right side
    11,768.63x = 68,353,121.21
  5. Step 5: Solve for x
    x = 68,353,121.21/11,768.63
  6. Step 6: Final answer
    x = 5,808.08

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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.