Home / 11,320.59-16,983.28-3,423.70

Finding the Fourth Proportional to 11,320.59, 16,983.28 and 3,423.70

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Solution

The fourth proportional to 11,320.59, 16,983.28 and 3,423.70 is: 5,136.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.59 : 16,983.28 = 3,423.70 : x
  2. Step 2: Convert to fraction form
    11,320.59/16,983.28 = 3,423.70/x
  3. Step 3: Cross multiply
    11,320.59x = 16,983.28 × 3,423.70
  4. Step 4: Simplify right side
    11,320.59x = 58,145,570.82
  5. Step 5: Solve for x
    x = 58,145,570.82/11,320.59
  6. Step 6: Final answer
    x = 5,136.27

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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.