Home / 13,632.74-18,814.92-8,326.43

Finding the Fourth Proportional to 13,632.74, 18,814.92 and 8,326.43

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Solution

The fourth proportional to 13,632.74, 18,814.92 and 8,326.43 is: 11,491.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.74 : 18,814.92 = 8,326.43 : x
  2. Step 2: Convert to fraction form
    13,632.74/18,814.92 = 8,326.43/x
  3. Step 3: Cross multiply
    13,632.74x = 18,814.92 × 8,326.43
  4. Step 4: Simplify right side
    13,632.74x = 156,661,114.34
  5. Step 5: Solve for x
    x = 156,661,114.34/13,632.74
  6. Step 6: Final answer
    x = 11,491.54

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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.