Home / 18,379.89-25,364.43-9,996.39

Finding the Fourth Proportional to 18,379.89, 25,364.43 and 9,996.39

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Solution

The fourth proportional to 18,379.89, 25,364.43 and 9,996.39 is: 13,795.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.89 : 25,364.43 = 9,996.39 : x
  2. Step 2: Convert to fraction form
    18,379.89/25,364.43 = 9,996.39/x
  3. Step 3: Cross multiply
    18,379.89x = 25,364.43 × 9,996.39
  4. Step 4: Simplify right side
    18,379.89x = 253,552,734.41
  5. Step 5: Solve for x
    x = 253,552,734.41/18,379.89
  6. Step 6: Final answer
    x = 13,795.12

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Double scale
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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.