Home / 13,790.89-20,690.27-6,772.93

Finding the Fourth Proportional to 13,790.89, 20,690.27 and 6,772.93

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Solution

The fourth proportional to 13,790.89, 20,690.27 and 6,772.93 is: 10,161.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790.89 : 20,690.27 = 6,772.93 : x
  2. Step 2: Convert to fraction form
    13,790.89/20,690.27 = 6,772.93/x
  3. Step 3: Cross multiply
    13,790.89x = 20,690.27 × 6,772.93
  4. Step 4: Simplify right side
    13,790.89x = 140,133,750.39
  5. Step 5: Solve for x
    x = 140,133,750.39/13,790.89
  6. Step 6: Final answer
    x = 10,161.33

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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.