Home / 13,789.45-20,677.01-6,766.39

Finding the Fourth Proportional to 13,789.45, 20,677.01 and 6,766.39

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Solution

The fourth proportional to 13,789.45, 20,677.01 and 6,766.39 is: 10,146.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.45 : 20,677.01 = 6,766.39 : x
  2. Step 2: Convert to fraction form
    13,789.45/20,677.01 = 6,766.39/x
  3. Step 3: Cross multiply
    13,789.45x = 20,677.01 × 6,766.39
  4. Step 4: Simplify right side
    13,789.45x = 139,908,713.69
  5. Step 5: Solve for x
    x = 139,908,713.69/13,789.45
  6. Step 6: Final answer
    x = 10,146.07

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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.