Home / 18,904.37-28,360.78-5,757.77

Finding the Fourth Proportional to 18,904.37, 28,360.78 and 5,757.77

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Solution

The fourth proportional to 18,904.37, 28,360.78 and 5,757.77 is: 8,637.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.37 : 28,360.78 = 5,757.77 : x
  2. Step 2: Convert to fraction form
    18,904.37/28,360.78 = 5,757.77/x
  3. Step 3: Cross multiply
    18,904.37x = 28,360.78 × 5,757.77
  4. Step 4: Simplify right side
    18,904.37x = 163,294,904.77
  5. Step 5: Solve for x
    x = 163,294,904.77/18,904.37
  6. Step 6: Final answer
    x = 8,637.95

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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.