Home / 18,933.72-26,119.80-11,847.84

Finding the Fourth Proportional to 18,933.72, 26,119.80 and 11,847.84

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Solution

The fourth proportional to 18,933.72, 26,119.80 and 11,847.84 is: 16,344.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.72 : 26,119.80 = 11,847.84 : x
  2. Step 2: Convert to fraction form
    18,933.72/26,119.80 = 11,847.84/x
  3. Step 3: Cross multiply
    18,933.72x = 26,119.80 × 11,847.84
  4. Step 4: Simplify right side
    18,933.72x = 309,463,211.23
  5. Step 5: Solve for x
    x = 309,463,211.23/18,933.72
  6. Step 6: Final answer
    x = 16,344.55

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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.