Home / 12,491.04-18,736.82-5,090.38

Finding the Fourth Proportional to 12,491.04, 18,736.82 and 5,090.38

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Solution

The fourth proportional to 12,491.04, 18,736.82 and 5,090.38 is: 7,635.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.04 : 18,736.82 = 5,090.38 : x
  2. Step 2: Convert to fraction form
    12,491.04/18,736.82 = 5,090.38/x
  3. Step 3: Cross multiply
    12,491.04x = 18,736.82 × 5,090.38
  4. Step 4: Simplify right side
    12,491.04x = 95,377,480.59
  5. Step 5: Solve for x
    x = 95,377,480.59/12,491.04
  6. Step 6: Final answer
    x = 7,635.67

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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.