Home / 13,673.09-20,509.79-3,812.46

Finding the Fourth Proportional to 13,673.09, 20,509.79 and 3,812.46

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Solution

The fourth proportional to 13,673.09, 20,509.79 and 3,812.46 is: 5,718.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.09 : 20,509.79 = 3,812.46 : x
  2. Step 2: Convert to fraction form
    13,673.09/20,509.79 = 3,812.46/x
  3. Step 3: Cross multiply
    13,673.09x = 20,509.79 × 3,812.46
  4. Step 4: Simplify right side
    13,673.09x = 78,192,753.98
  5. Step 5: Solve for x
    x = 78,192,753.98/13,673.09
  6. Step 6: Final answer
    x = 5,718.73

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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.