Home / 8,177.18-12,263.79-3,790.40

Finding the Fourth Proportional to 8,177.18, 12,263.79 and 3,790.40

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Solution

The fourth proportional to 8,177.18, 12,263.79 and 3,790.40 is: 5,684.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,177.18 : 12,263.79 = 3,790.40 : x
  2. Step 2: Convert to fraction form
    8,177.18/12,263.79 = 3,790.40/x
  3. Step 3: Cross multiply
    8,177.18x = 12,263.79 × 3,790.40
  4. Step 4: Simplify right side
    8,177.18x = 46,484,669.62
  5. Step 5: Solve for x
    x = 46,484,669.62/8,177.18
  6. Step 6: Final answer
    x = 5,684.68

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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.