Home / 13,812.84-20,712.84-4,451.12

Finding the Fourth Proportional to 13,812.84, 20,712.84 and 4,451.12

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Solution

The fourth proportional to 13,812.84, 20,712.84 and 4,451.12 is: 6,674.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.84 : 20,712.84 = 4,451.12 : x
  2. Step 2: Convert to fraction form
    13,812.84/20,712.84 = 4,451.12/x
  3. Step 3: Cross multiply
    13,812.84x = 20,712.84 × 4,451.12
  4. Step 4: Simplify right side
    13,812.84x = 92,195,336.38
  5. Step 5: Solve for x
    x = 92,195,336.38/13,812.84
  6. Step 6: Final answer
    x = 6,674.61

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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.