Home / 13,382.28-18,467.60-8,343.54

Finding the Fourth Proportional to 13,382.28, 18,467.60 and 8,343.54

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Solution

The fourth proportional to 13,382.28, 18,467.60 and 8,343.54 is: 11,514.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.28 : 18,467.60 = 8,343.54 : x
  2. Step 2: Convert to fraction form
    13,382.28/18,467.60 = 8,343.54/x
  3. Step 3: Cross multiply
    13,382.28x = 18,467.60 × 8,343.54
  4. Step 4: Simplify right side
    13,382.28x = 154,085,117.59
  5. Step 5: Solve for x
    x = 154,085,117.59/13,382.28
  6. Step 6: Final answer
    x = 11,514.12

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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.