Home / 13,450.90-18,563.88-8,145.58

Finding the Fourth Proportional to 13,450.90, 18,563.88 and 8,145.58

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Solution

The fourth proportional to 13,450.90, 18,563.88 and 8,145.58 is: 11,241.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.90 : 18,563.88 = 8,145.58 : x
  2. Step 2: Convert to fraction form
    13,450.90/18,563.88 = 8,145.58/x
  3. Step 3: Cross multiply
    13,450.90x = 18,563.88 × 8,145.58
  4. Step 4: Simplify right side
    13,450.90x = 151,213,569.65
  5. Step 5: Solve for x
    x = 151,213,569.65/13,450.90
  6. Step 6: Final answer
    x = 11,241.89

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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.