Home / 18,208.99-27,307.41-7,112.80

Finding the Fourth Proportional to 18,208.99, 27,307.41 and 7,112.80

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Solution

The fourth proportional to 18,208.99, 27,307.41 and 7,112.80 is: 10,666.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,208.99 : 27,307.41 = 7,112.80 : x
  2. Step 2: Convert to fraction form
    18,208.99/27,307.41 = 7,112.80/x
  3. Step 3: Cross multiply
    18,208.99x = 27,307.41 × 7,112.80
  4. Step 4: Simplify right side
    18,208.99x = 194,232,145.85
  5. Step 5: Solve for x
    x = 194,232,145.85/18,208.99
  6. Step 6: Final answer
    x = 10,666.83

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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.