Home / 13,436.30-18,523.93-11,336.78

Finding the Fourth Proportional to 13,436.30, 18,523.93 and 11,336.78

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Solution

The fourth proportional to 13,436.30, 18,523.93 and 11,336.78 is: 15,629.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.30 : 18,523.93 = 11,336.78 : x
  2. Step 2: Convert to fraction form
    13,436.30/18,523.93 = 11,336.78/x
  3. Step 3: Cross multiply
    13,436.30x = 18,523.93 × 11,336.78
  4. Step 4: Simplify right side
    13,436.30x = 210,001,719.15
  5. Step 5: Solve for x
    x = 210,001,719.15/13,436.30
  6. Step 6: Final answer
    x = 15,629.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.