Home / 12,076.79-18,118.97-5,418.96

Finding the Fourth Proportional to 12,076.79, 18,118.97 and 5,418.96

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Solution

The fourth proportional to 12,076.79, 18,118.97 and 5,418.96 is: 8,130.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.79 : 18,118.97 = 5,418.96 : x
  2. Step 2: Convert to fraction form
    12,076.79/18,118.97 = 5,418.96/x
  3. Step 3: Cross multiply
    12,076.79x = 18,118.97 × 5,418.96
  4. Step 4: Simplify right side
    12,076.79x = 98,185,946.58
  5. Step 5: Solve for x
    x = 98,185,946.58/12,076.79
  6. Step 6: Final answer
    x = 8,130.14

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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.