Home / 11,790.78-17,686.80-3,025.77

Finding the Fourth Proportional to 11,790.78, 17,686.80 and 3,025.77

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Solution

The fourth proportional to 11,790.78, 17,686.80 and 3,025.77 is: 4,538.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.78 : 17,686.80 = 3,025.77 : x
  2. Step 2: Convert to fraction form
    11,790.78/17,686.80 = 3,025.77/x
  3. Step 3: Cross multiply
    11,790.78x = 17,686.80 × 3,025.77
  4. Step 4: Simplify right side
    11,790.78x = 53,516,188.84
  5. Step 5: Solve for x
    x = 53,516,188.84/11,790.78
  6. Step 6: Final answer
    x = 4,538.82

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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.