Home / 13,288.25-18,336.41-8,182.95

Finding the Fourth Proportional to 13,288.25, 18,336.41 and 8,182.95

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Solution

The fourth proportional to 13,288.25, 18,336.41 and 8,182.95 is: 11,291.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.25 : 18,336.41 = 8,182.95 : x
  2. Step 2: Convert to fraction form
    13,288.25/18,336.41 = 8,182.95/x
  3. Step 3: Cross multiply
    13,288.25x = 18,336.41 × 8,182.95
  4. Step 4: Simplify right side
    13,288.25x = 150,045,926.21
  5. Step 5: Solve for x
    x = 150,045,926.21/13,288.25
  6. Step 6: Final answer
    x = 11,291.62

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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.