Home / 13,433.42-20,182.73-11,858.78

Finding the Fourth Proportional to 13,433.42, 20,182.73 and 11,858.78

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Solution

The fourth proportional to 13,433.42, 20,182.73 and 11,858.78 is: 17,816.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,433.42 : 20,182.73 = 11,858.78 : x
  2. Step 2: Convert to fraction form
    13,433.42/20,182.73 = 11,858.78/x
  3. Step 3: Cross multiply
    13,433.42x = 20,182.73 × 11,858.78
  4. Step 4: Simplify right side
    13,433.42x = 239,342,394.66
  5. Step 5: Solve for x
    x = 239,342,394.66/13,433.42
  6. Step 6: Final answer
    x = 17,816.94

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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.