Home / 12,308.85-18,458.42-4,513.41

Finding the Fourth Proportional to 12,308.85, 18,458.42 and 4,513.41

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Solution

The fourth proportional to 12,308.85, 18,458.42 and 4,513.41 is: 6,768.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,308.85 : 18,458.42 = 4,513.41 : x
  2. Step 2: Convert to fraction form
    12,308.85/18,458.42 = 4,513.41/x
  3. Step 3: Cross multiply
    12,308.85x = 18,458.42 × 4,513.41
  4. Step 4: Simplify right side
    12,308.85x = 83,310,394.85
  5. Step 5: Solve for x
    x = 83,310,394.85/12,308.85
  6. Step 6: Final answer
    x = 6,768.33

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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.