Home / 11,120.81-16,687.34-4,551.60

Finding the Fourth Proportional to 11,120.81, 16,687.34 and 4,551.60

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Solution

The fourth proportional to 11,120.81, 16,687.34 and 4,551.60 is: 6,829.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.81 : 16,687.34 = 4,551.60 : x
  2. Step 2: Convert to fraction form
    11,120.81/16,687.34 = 4,551.60/x
  3. Step 3: Cross multiply
    11,120.81x = 16,687.34 × 4,551.60
  4. Step 4: Simplify right side
    11,120.81x = 75,954,153.63
  5. Step 5: Solve for x
    x = 75,954,153.63/11,120.81
  6. Step 6: Final answer
    x = 6,829.92

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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.