Home / 12,124.36-18,186.54-3,359.28

Finding the Fourth Proportional to 12,124.36, 18,186.54 and 3,359.28

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Solution

The fourth proportional to 12,124.36, 18,186.54 and 3,359.28 is: 5,038.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.36 : 18,186.54 = 3,359.28 : x
  2. Step 2: Convert to fraction form
    12,124.36/18,186.54 = 3,359.28/x
  3. Step 3: Cross multiply
    12,124.36x = 18,186.54 × 3,359.28
  4. Step 4: Simplify right side
    12,124.36x = 61,093,680.09
  5. Step 5: Solve for x
    x = 61,093,680.09/12,124.36
  6. Step 6: Final answer
    x = 5,038.92

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Similar ratio
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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.