Home / 18,087.90-27,131.58-4,940.24

Finding the Fourth Proportional to 18,087.90, 27,131.58 and 4,940.24

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Solution

The fourth proportional to 18,087.90, 27,131.58 and 4,940.24 is: 7,410.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.90 : 27,131.58 = 4,940.24 : x
  2. Step 2: Convert to fraction form
    18,087.90/27,131.58 = 4,940.24/x
  3. Step 3: Cross multiply
    18,087.90x = 27,131.58 × 4,940.24
  4. Step 4: Simplify right side
    18,087.90x = 134,036,381.12
  5. Step 5: Solve for x
    x = 134,036,381.12/18,087.90
  6. Step 6: Final answer
    x = 7,410.28

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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.