Home / 11,428.41-17,144.53-3,931.67

Finding the Fourth Proportional to 11,428.41, 17,144.53 and 3,931.67

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Solution

The fourth proportional to 11,428.41, 17,144.53 and 3,931.67 is: 5,898.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.41 : 17,144.53 = 3,931.67 : x
  2. Step 2: Convert to fraction form
    11,428.41/17,144.53 = 3,931.67/x
  3. Step 3: Cross multiply
    11,428.41x = 17,144.53 × 3,931.67
  4. Step 4: Simplify right side
    11,428.41x = 67,406,634.27
  5. Step 5: Solve for x
    x = 67,406,634.27/11,428.41
  6. Step 6: Final answer
    x = 5,898.16

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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.