Home / 13,639.84-18,823.44-8,050.72

Finding the Fourth Proportional to 13,639.84, 18,823.44 and 8,050.72

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Solution

The fourth proportional to 13,639.84, 18,823.44 and 8,050.72 is: 11,110.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639.84 : 18,823.44 = 8,050.72 : x
  2. Step 2: Convert to fraction form
    13,639.84/18,823.44 = 8,050.72/x
  3. Step 3: Cross multiply
    13,639.84x = 18,823.44 × 8,050.72
  4. Step 4: Simplify right side
    13,639.84x = 151,542,244.88
  5. Step 5: Solve for x
    x = 151,542,244.88/13,639.84
  6. Step 6: Final answer
    x = 11,110.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.