Home / 8,742.92-13,119.85-3,548.80

Finding the Fourth Proportional to 8,742.92, 13,119.85 and 3,548.80

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Solution

The fourth proportional to 8,742.92, 13,119.85 and 3,548.80 is: 5,325.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.92 : 13,119.85 = 3,548.80 : x
  2. Step 2: Convert to fraction form
    8,742.92/13,119.85 = 3,548.80/x
  3. Step 3: Cross multiply
    8,742.92x = 13,119.85 × 3,548.80
  4. Step 4: Simplify right side
    8,742.92x = 46,559,658.08
  5. Step 5: Solve for x
    x = 46,559,658.08/8,742.92
  6. Step 6: Final answer
    x = 5,325.41

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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.