Home / 9,421.79-14,131.91-2,757.76

Finding the Fourth Proportional to 9,421.79, 14,131.91 and 2,757.76

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Solution

The fourth proportional to 9,421.79, 14,131.91 and 2,757.76 is: 4,136.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.79 : 14,131.91 = 2,757.76 : x
  2. Step 2: Convert to fraction form
    9,421.79/14,131.91 = 2,757.76/x
  3. Step 3: Cross multiply
    9,421.79x = 14,131.91 × 2,757.76
  4. Step 4: Simplify right side
    9,421.79x = 38,972,416.12
  5. Step 5: Solve for x
    x = 38,972,416.12/9,421.79
  6. Step 6: Final answer
    x = 4,136.41

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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.