Home / 13,880.73-20,827.94-6,485.72

Finding the Fourth Proportional to 13,880.73, 20,827.94 and 6,485.72

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Solution

The fourth proportional to 13,880.73, 20,827.94 and 6,485.72 is: 9,731.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.73 : 20,827.94 = 6,485.72 : x
  2. Step 2: Convert to fraction form
    13,880.73/20,827.94 = 6,485.72/x
  3. Step 3: Cross multiply
    13,880.73x = 20,827.94 × 6,485.72
  4. Step 4: Simplify right side
    13,880.73x = 135,084,050.45
  5. Step 5: Solve for x
    x = 135,084,050.45/13,880.73
  6. Step 6: Final answer
    x = 9,731.77

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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.