Home / 13,878.46-20,812.26-4,516.20

Finding the Fourth Proportional to 13,878.46, 20,812.26 and 4,516.20

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Solution

The fourth proportional to 13,878.46, 20,812.26 and 4,516.20 is: 6,772.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,878.46 : 20,812.26 = 4,516.20 : x
  2. Step 2: Convert to fraction form
    13,878.46/20,812.26 = 4,516.20/x
  3. Step 3: Cross multiply
    13,878.46x = 20,812.26 × 4,516.20
  4. Step 4: Simplify right side
    13,878.46x = 93,992,320.14
  5. Step 5: Solve for x
    x = 93,992,320.14/13,878.46
  6. Step 6: Final answer
    x = 6,772.53

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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.