Home / 12,383.70-18,575.10-4,986.15

Finding the Fourth Proportional to 12,383.70, 18,575.10 and 4,986.15

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Solution

The fourth proportional to 12,383.70, 18,575.10 and 4,986.15 is: 7,479.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.70 : 18,575.10 = 4,986.15 : x
  2. Step 2: Convert to fraction form
    12,383.70/18,575.10 = 4,986.15/x
  3. Step 3: Cross multiply
    12,383.70x = 18,575.10 × 4,986.15
  4. Step 4: Simplify right side
    12,383.70x = 92,618,234.87
  5. Step 5: Solve for x
    x = 92,618,234.87/12,383.70
  6. Step 6: Final answer
    x = 7,479.04

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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.