Home / 11,823.78-16,316.62-6,446.28

Finding the Fourth Proportional to 11,823.78, 16,316.62 and 6,446.28

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Solution

The fourth proportional to 11,823.78, 16,316.62 and 6,446.28 is: 8,895.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,823.78 : 16,316.62 = 6,446.28 : x
  2. Step 2: Convert to fraction form
    11,823.78/16,316.62 = 6,446.28/x
  3. Step 3: Cross multiply
    11,823.78x = 16,316.62 × 6,446.28
  4. Step 4: Simplify right side
    11,823.78x = 105,181,546.25
  5. Step 5: Solve for x
    x = 105,181,546.25/11,823.78
  6. Step 6: Final answer
    x = 8,895.76

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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.