Home / 13,731.36-20,600.92-3,870.73

Finding the Fourth Proportional to 13,731.36, 20,600.92 and 3,870.73

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Solution

The fourth proportional to 13,731.36, 20,600.92 and 3,870.73 is: 5,807.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.36 : 20,600.92 = 3,870.73 : x
  2. Step 2: Convert to fraction form
    13,731.36/20,600.92 = 3,870.73/x
  3. Step 3: Cross multiply
    13,731.36x = 20,600.92 × 3,870.73
  4. Step 4: Simplify right side
    13,731.36x = 79,740,599.07
  5. Step 5: Solve for x
    x = 79,740,599.07/13,731.36
  6. Step 6: Final answer
    x = 5,807.19

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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.