Home / 14,816.84-20,447.09-8,102.39

Finding the Fourth Proportional to 14,816.84, 20,447.09 and 8,102.39

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Solution

The fourth proportional to 14,816.84, 20,447.09 and 8,102.39 is: 11,181.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,816.84 : 20,447.09 = 8,102.39 : x
  2. Step 2: Convert to fraction form
    14,816.84/20,447.09 = 8,102.39/x
  3. Step 3: Cross multiply
    14,816.84x = 20,447.09 × 8,102.39
  4. Step 4: Simplify right side
    14,816.84x = 165,670,297.55
  5. Step 5: Solve for x
    x = 165,670,297.55/14,816.84
  6. Step 6: Final answer
    x = 11,181.22

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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.