Home / 15,450.94-23,178.62-4,778.12

Finding the Fourth Proportional to 15,450.94, 23,178.62 and 4,778.12

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Solution

The fourth proportional to 15,450.94, 23,178.62 and 4,778.12 is: 7,167.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,450.94 : 23,178.62 = 4,778.12 : x
  2. Step 2: Convert to fraction form
    15,450.94/23,178.62 = 4,778.12/x
  3. Step 3: Cross multiply
    15,450.94x = 23,178.62 × 4,778.12
  4. Step 4: Simplify right side
    15,450.94x = 110,750,227.79
  5. Step 5: Solve for x
    x = 110,750,227.79/15,450.94
  6. Step 6: Final answer
    x = 7,167.86

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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.