Home / 12,255.92-18,389.96-4,860.21

Finding the Fourth Proportional to 12,255.92, 18,389.96 and 4,860.21

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Solution

The fourth proportional to 12,255.92, 18,389.96 and 4,860.21 is: 7,292.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.92 : 18,389.96 = 4,860.21 : x
  2. Step 2: Convert to fraction form
    12,255.92/18,389.96 = 4,860.21/x
  3. Step 3: Cross multiply
    12,255.92x = 18,389.96 × 4,860.21
  4. Step 4: Simplify right side
    12,255.92x = 89,379,130.38
  5. Step 5: Solve for x
    x = 89,379,130.38/12,255.92
  6. Step 6: Final answer
    x = 7,292.73

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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.