Home / 12,543.73-18,813.47-3,776.60

Finding the Fourth Proportional to 12,543.73, 18,813.47 and 3,776.60

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Solution

The fourth proportional to 12,543.73, 18,813.47 and 3,776.60 is: 5,664.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.73 : 18,813.47 = 3,776.60 : x
  2. Step 2: Convert to fraction form
    12,543.73/18,813.47 = 3,776.60/x
  3. Step 3: Cross multiply
    12,543.73x = 18,813.47 × 3,776.60
  4. Step 4: Simplify right side
    12,543.73x = 71,050,978.95
  5. Step 5: Solve for x
    x = 71,050,978.95/12,543.73
  6. Step 6: Final answer
    x = 5,664.26

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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.