Home / 14,343.75-21,516.53-3,813.62

Finding the Fourth Proportional to 14,343.75, 21,516.53 and 3,813.62

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Solution

The fourth proportional to 14,343.75, 21,516.53 and 3,813.62 is: 5,720.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343.75 : 21,516.53 = 3,813.62 : x
  2. Step 2: Convert to fraction form
    14,343.75/21,516.53 = 3,813.62/x
  3. Step 3: Cross multiply
    14,343.75x = 21,516.53 × 3,813.62
  4. Step 4: Simplify right side
    14,343.75x = 82,055,742.49
  5. Step 5: Solve for x
    x = 82,055,742.49/14,343.75
  6. Step 6: Final answer
    x = 5,720.66

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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.