Home / 12,124.86-18,187.29-3,805.52

Finding the Fourth Proportional to 12,124.86, 18,187.29 and 3,805.52

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Solution

The fourth proportional to 12,124.86, 18,187.29 and 3,805.52 is: 5,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.86 : 18,187.29 = 3,805.52 : x
  2. Step 2: Convert to fraction form
    12,124.86/18,187.29 = 3,805.52/x
  3. Step 3: Cross multiply
    12,124.86x = 18,187.29 × 3,805.52
  4. Step 4: Simplify right side
    12,124.86x = 69,212,004.90
  5. Step 5: Solve for x
    x = 69,212,004.90/12,124.86
  6. Step 6: Final answer
    x = 5,708.27

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1.5x scale

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.