Home / 18,274.12-27,389.28-11,242.90

Finding the Fourth Proportional to 18,274.12, 27,389.28 and 11,242.90

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Solution

The fourth proportional to 18,274.12, 27,389.28 and 11,242.90 is: 16,850.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.12 : 27,389.28 = 11,242.90 : x
  2. Step 2: Convert to fraction form
    18,274.12/27,389.28 = 11,242.90/x
  3. Step 3: Cross multiply
    18,274.12x = 27,389.28 × 11,242.90
  4. Step 4: Simplify right side
    18,274.12x = 307,934,936.11
  5. Step 5: Solve for x
    x = 307,934,936.11/18,274.12
  6. Step 6: Final answer
    x = 16,850.88

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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.