Home / 15,811.20-23,716.82-4,123.50

Finding the Fourth Proportional to 15,811.20, 23,716.82 and 4,123.50

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Solution

The fourth proportional to 15,811.20, 23,716.82 and 4,123.50 is: 6,185.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,811.20 : 23,716.82 = 4,123.50 : x
  2. Step 2: Convert to fraction form
    15,811.20/23,716.82 = 4,123.50/x
  3. Step 3: Cross multiply
    15,811.20x = 23,716.82 × 4,123.50
  4. Step 4: Simplify right side
    15,811.20x = 97,796,307.27
  5. Step 5: Solve for x
    x = 97,796,307.27/15,811.20
  6. Step 6: Final answer
    x = 6,185.26

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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.