Home / 12,195.05-18,293.09-4,195.32

Finding the Fourth Proportional to 12,195.05, 18,293.09 and 4,195.32

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Solution

The fourth proportional to 12,195.05, 18,293.09 and 4,195.32 is: 6,293.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.05 : 18,293.09 = 4,195.32 : x
  2. Step 2: Convert to fraction form
    12,195.05/18,293.09 = 4,195.32/x
  3. Step 3: Cross multiply
    12,195.05x = 18,293.09 × 4,195.32
  4. Step 4: Simplify right side
    12,195.05x = 76,745,345.36
  5. Step 5: Solve for x
    x = 76,745,345.36/12,195.05
  6. Step 6: Final answer
    x = 6,293.16

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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.