Home / 14,076.36-21,115.80-8,229.60

Finding the Fourth Proportional to 14,076.36, 21,115.80 and 8,229.60

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Solution

The fourth proportional to 14,076.36, 21,115.80 and 8,229.60 is: 12,345.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,076.36 : 21,115.80 = 8,229.60 : x
  2. Step 2: Convert to fraction form
    14,076.36/21,115.80 = 8,229.60/x
  3. Step 3: Cross multiply
    14,076.36x = 21,115.80 × 8,229.60
  4. Step 4: Simplify right side
    14,076.36x = 173,774,587.68
  5. Step 5: Solve for x
    x = 173,774,587.68/14,076.36
  6. Step 6: Final answer
    x = 12,345.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.