Home / 12,255.82-18,385.75-4,860.32

Finding the Fourth Proportional to 12,255.82, 18,385.75 and 4,860.32

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Solution

The fourth proportional to 12,255.82, 18,385.75 and 4,860.32 is: 7,291.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.82 : 18,385.75 = 4,860.32 : x
  2. Step 2: Convert to fraction form
    12,255.82/18,385.75 = 4,860.32/x
  3. Step 3: Cross multiply
    12,255.82x = 18,385.75 × 4,860.32
  4. Step 4: Simplify right side
    12,255.82x = 89,360,542.59
  5. Step 5: Solve for x
    x = 89,360,542.59/12,255.82
  6. Step 6: Final answer
    x = 7,291.28

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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.