Home / 11,320.09-16,982.53-3,423.20

Finding the Fourth Proportional to 11,320.09, 16,982.53 and 3,423.20

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Solution

The fourth proportional to 11,320.09, 16,982.53 and 3,423.20 is: 5,135.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.09 : 16,982.53 = 3,423.20 : x
  2. Step 2: Convert to fraction form
    11,320.09/16,982.53 = 3,423.20/x
  3. Step 3: Cross multiply
    11,320.09x = 16,982.53 × 3,423.20
  4. Step 4: Simplify right side
    11,320.09x = 58,134,503.23
  5. Step 5: Solve for x
    x = 58,134,503.23/11,320.09
  6. Step 6: Final answer
    x = 5,135.52

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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.