Home / 18,213.69-27,320.72-4,887.32

Finding the Fourth Proportional to 18,213.69, 27,320.72 and 4,887.32

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Solution

The fourth proportional to 18,213.69, 27,320.72 and 4,887.32 is: 7,331.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.69 : 27,320.72 = 4,887.32 : x
  2. Step 2: Convert to fraction form
    18,213.69/27,320.72 = 4,887.32/x
  3. Step 3: Cross multiply
    18,213.69x = 27,320.72 × 4,887.32
  4. Step 4: Simplify right side
    18,213.69x = 133,524,940.23
  5. Step 5: Solve for x
    x = 133,524,940.23/18,213.69
  6. Step 6: Final answer
    x = 7,331.02

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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.