Home / 13,636.98-18,814.95-8,326.22

Finding the Fourth Proportional to 13,636.98, 18,814.95 and 8,326.22

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Solution

The fourth proportional to 13,636.98, 18,814.95 and 8,326.22 is: 11,487.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.98 : 18,814.95 = 8,326.22 : x
  2. Step 2: Convert to fraction form
    13,636.98/18,814.95 = 8,326.22/x
  3. Step 3: Cross multiply
    13,636.98x = 18,814.95 × 8,326.22
  4. Step 4: Simplify right side
    13,636.98x = 156,657,318.91
  5. Step 5: Solve for x
    x = 156,657,318.91/13,636.98
  6. Step 6: Final answer
    x = 11,487.68

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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.