Home / 13,559.03-18,713.33-8,181.75

Finding the Fourth Proportional to 13,559.03, 18,713.33 and 8,181.75

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Solution

The fourth proportional to 13,559.03, 18,713.33 and 8,181.75 is: 11,291.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.03 : 18,713.33 = 8,181.75 : x
  2. Step 2: Convert to fraction form
    13,559.03/18,713.33 = 8,181.75/x
  3. Step 3: Cross multiply
    13,559.03x = 18,713.33 × 8,181.75
  4. Step 4: Simplify right side
    13,559.03x = 153,107,787.73
  5. Step 5: Solve for x
    x = 153,107,787.73/13,559.03
  6. Step 6: Final answer
    x = 11,291.94

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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.