Home / 12,195.62-18,293.45-3,430.54

Finding the Fourth Proportional to 12,195.62, 18,293.45 and 3,430.54

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Solution

The fourth proportional to 12,195.62, 18,293.45 and 3,430.54 is: 5,145.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.62 : 18,293.45 = 3,430.54 : x
  2. Step 2: Convert to fraction form
    12,195.62/18,293.45 = 3,430.54/x
  3. Step 3: Cross multiply
    12,195.62x = 18,293.45 × 3,430.54
  4. Step 4: Simplify right side
    12,195.62x = 62,756,411.96
  5. Step 5: Solve for x
    x = 62,756,411.96/12,195.62
  6. Step 6: Final answer
    x = 5,145.82

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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.