Home / 8,743.92-12,078.84-6,090

Finding the Fourth Proportional to 8,743.92, 12,078.84 and 6,090

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Solution

The fourth proportional to 8,743.92, 12,078.84 and 6,090 is: 8,412.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.92 : 12,078.84 = 6,090 : x
  2. Step 2: Convert to fraction form
    8,743.92/12,078.84 = 6,090/x
  3. Step 3: Cross multiply
    8,743.92x = 12,078.84 × 6,090
  4. Step 4: Simplify right side
    8,743.92x = 73,560,135.60
  5. Step 5: Solve for x
    x = 73,560,135.60/8,743.92
  6. Step 6: Final answer
    x = 8,412.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.