Home / 13,488.55-18,610.99-8,183.23

Finding the Fourth Proportional to 13,488.55, 18,610.99 and 8,183.23

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Solution

The fourth proportional to 13,488.55, 18,610.99 and 8,183.23 is: 11,290.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.55 : 18,610.99 = 8,183.23 : x
  2. Step 2: Convert to fraction form
    13,488.55/18,610.99 = 8,183.23/x
  3. Step 3: Cross multiply
    13,488.55x = 18,610.99 × 8,183.23
  4. Step 4: Simplify right side
    13,488.55x = 152,298,011.70
  5. Step 5: Solve for x
    x = 152,298,011.70/13,488.55
  6. Step 6: Final answer
    x = 11,290.91

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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.