Home / 13,788.94-20,670.56-5,021.86

Finding the Fourth Proportional to 13,788.94, 20,670.56 and 5,021.86

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Solution

The fourth proportional to 13,788.94, 20,670.56 and 5,021.86 is: 7,528.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.94 : 20,670.56 = 5,021.86 : x
  2. Step 2: Convert to fraction form
    13,788.94/20,670.56 = 5,021.86/x
  3. Step 3: Cross multiply
    13,788.94x = 20,670.56 × 5,021.86
  4. Step 4: Simplify right side
    13,788.94x = 103,804,658.44
  5. Step 5: Solve for x
    x = 103,804,658.44/13,788.94
  6. Step 6: Final answer
    x = 7,528.11

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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.