Home / 15,611.73-23,418.80-4,518.57

Finding the Fourth Proportional to 15,611.73, 23,418.80 and 4,518.57

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Solution

The fourth proportional to 15,611.73, 23,418.80 and 4,518.57 is: 6,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,611.73 : 23,418.80 = 4,518.57 : x
  2. Step 2: Convert to fraction form
    15,611.73/23,418.80 = 4,518.57/x
  3. Step 3: Cross multiply
    15,611.73x = 23,418.80 × 4,518.57
  4. Step 4: Simplify right side
    15,611.73x = 105,819,487.12
  5. Step 5: Solve for x
    x = 105,819,487.12/15,611.73
  6. Step 6: Final answer
    x = 6,778.20

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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.