Home / 18,072.20-27,108.12-4,924.40

Finding the Fourth Proportional to 18,072.20, 27,108.12 and 4,924.40

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Solution

The fourth proportional to 18,072.20, 27,108.12 and 4,924.40 is: 7,386.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,072.20 : 27,108.12 = 4,924.40 : x
  2. Step 2: Convert to fraction form
    18,072.20/27,108.12 = 4,924.40/x
  3. Step 3: Cross multiply
    18,072.20x = 27,108.12 × 4,924.40
  4. Step 4: Simplify right side
    18,072.20x = 133,491,226.13
  5. Step 5: Solve for x
    x = 133,491,226.13/18,072.20
  6. Step 6: Final answer
    x = 7,386.55

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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.