Home / 13,506.92-18,631.76-8,125.62

Finding the Fourth Proportional to 13,506.92, 18,631.76 and 8,125.62

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Solution

The fourth proportional to 13,506.92, 18,631.76 and 8,125.62 is: 11,208.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.92 : 18,631.76 = 8,125.62 : x
  2. Step 2: Convert to fraction form
    13,506.92/18,631.76 = 8,125.62/x
  3. Step 3: Cross multiply
    13,506.92x = 18,631.76 × 8,125.62
  4. Step 4: Simplify right side
    13,506.92x = 151,394,601.69
  5. Step 5: Solve for x
    x = 151,394,601.69/13,506.92
  6. Step 6: Final answer
    x = 11,208.67

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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.