Home / 18,120.81-24,983.56-11,736.12

Finding the Fourth Proportional to 18,120.81, 24,983.56 and 11,736.12

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Solution

The fourth proportional to 18,120.81, 24,983.56 and 11,736.12 is: 16,180.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.81 : 24,983.56 = 11,736.12 : x
  2. Step 2: Convert to fraction form
    18,120.81/24,983.56 = 11,736.12/x
  3. Step 3: Cross multiply
    18,120.81x = 24,983.56 × 11,736.12
  4. Step 4: Simplify right side
    18,120.81x = 293,209,933.27
  5. Step 5: Solve for x
    x = 293,209,933.27/18,120.81
  6. Step 6: Final answer
    x = 16,180.84

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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.