Home / 13,554.83-20,321.82-6,885.84

Finding the Fourth Proportional to 13,554.83, 20,321.82 and 6,885.84

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Solution

The fourth proportional to 13,554.83, 20,321.82 and 6,885.84 is: 10,323.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.83 : 20,321.82 = 6,885.84 : x
  2. Step 2: Convert to fraction form
    13,554.83/20,321.82 = 6,885.84/x
  3. Step 3: Cross multiply
    13,554.83x = 20,321.82 × 6,885.84
  4. Step 4: Simplify right side
    13,554.83x = 139,932,801.03
  5. Step 5: Solve for x
    x = 139,932,801.03/13,554.83
  6. Step 6: Final answer
    x = 10,323.47

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1.5x scale

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.