Home / 13,960.45-20,918.76-12,199.92

Finding the Fourth Proportional to 13,960.45, 20,918.76 and 12,199.92

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Solution

The fourth proportional to 13,960.45, 20,918.76 and 12,199.92 is: 18,280.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,960.45 : 20,918.76 = 12,199.92 : x
  2. Step 2: Convert to fraction form
    13,960.45/20,918.76 = 12,199.92/x
  3. Step 3: Cross multiply
    13,960.45x = 20,918.76 × 12,199.92
  4. Step 4: Simplify right side
    13,960.45x = 255,207,074.30
  5. Step 5: Solve for x
    x = 255,207,074.30/13,960.45
  6. Step 6: Final answer
    x = 18,280.72

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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.