Home / 8,768.48-13,158.47-3,221.87

Finding the Fourth Proportional to 8,768.48, 13,158.47 and 3,221.87

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Solution

The fourth proportional to 8,768.48, 13,158.47 and 3,221.87 is: 4,834.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.48 : 13,158.47 = 3,221.87 : x
  2. Step 2: Convert to fraction form
    8,768.48/13,158.47 = 3,221.87/x
  3. Step 3: Cross multiply
    8,768.48x = 13,158.47 × 3,221.87
  4. Step 4: Simplify right side
    8,768.48x = 42,394,803.88
  5. Step 5: Solve for x
    x = 42,394,803.88/8,768.48
  6. Step 6: Final answer
    x = 4,834.91

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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.