Home / 13,558.62-18,709.86-8,252.85

Finding the Fourth Proportional to 13,558.62, 18,709.86 and 8,252.85

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Solution

The fourth proportional to 13,558.62, 18,709.86 and 8,252.85 is: 11,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.62 : 18,709.86 = 8,252.85 : x
  2. Step 2: Convert to fraction form
    13,558.62/18,709.86 = 8,252.85/x
  3. Step 3: Cross multiply
    13,558.62x = 18,709.86 × 8,252.85
  4. Step 4: Simplify right side
    13,558.62x = 154,409,668.10
  5. Step 5: Solve for x
    x = 154,409,668.10/13,558.62
  6. Step 6: Final answer
    x = 11,388.30

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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.