Home / 12,475.75-18,713.55-5,078.44

Finding the Fourth Proportional to 12,475.75, 18,713.55 and 5,078.44

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Solution

The fourth proportional to 12,475.75, 18,713.55 and 5,078.44 is: 7,617.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.75 : 18,713.55 = 5,078.44 : x
  2. Step 2: Convert to fraction form
    12,475.75/18,713.55 = 5,078.44/x
  3. Step 3: Cross multiply
    12,475.75x = 18,713.55 × 5,078.44
  4. Step 4: Simplify right side
    12,475.75x = 95,035,640.86
  5. Step 5: Solve for x
    x = 95,035,640.86/12,475.75
  6. Step 6: Final answer
    x = 7,617.63

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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.