Home / 13,558.38-20,346.06-5,766.54

Finding the Fourth Proportional to 13,558.38, 20,346.06 and 5,766.54

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Solution

The fourth proportional to 13,558.38, 20,346.06 and 5,766.54 is: 8,653.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.38 : 20,346.06 = 5,766.54 : x
  2. Step 2: Convert to fraction form
    13,558.38/20,346.06 = 5,766.54/x
  3. Step 3: Cross multiply
    13,558.38x = 20,346.06 × 5,766.54
  4. Step 4: Simplify right side
    13,558.38x = 117,326,368.83
  5. Step 5: Solve for x
    x = 117,326,368.83/13,558.38
  6. Step 6: Final answer
    x = 8,653.42

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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.