Home / 11,817.96-17,730.02-4,423

Finding the Fourth Proportional to 11,817.96, 17,730.02 and 4,423

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Solution

The fourth proportional to 11,817.96, 17,730.02 and 4,423 is: 6,635.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,817.96 : 17,730.02 = 4,423 : x
  2. Step 2: Convert to fraction form
    11,817.96/17,730.02 = 4,423/x
  3. Step 3: Cross multiply
    11,817.96x = 17,730.02 × 4,423
  4. Step 4: Simplify right side
    11,817.96x = 78,419,878.46
  5. Step 5: Solve for x
    x = 78,419,878.46/11,817.96
  6. Step 6: Final answer
    x = 6,635.65

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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.