Home / 13,771.49-20,660.26-5,006.39

Finding the Fourth Proportional to 13,771.49, 20,660.26 and 5,006.39

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Solution

The fourth proportional to 13,771.49, 20,660.26 and 5,006.39 is: 7,510.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.49 : 20,660.26 = 5,006.39 : x
  2. Step 2: Convert to fraction form
    13,771.49/20,660.26 = 5,006.39/x
  3. Step 3: Cross multiply
    13,771.49x = 20,660.26 × 5,006.39
  4. Step 4: Simplify right side
    13,771.49x = 103,433,358.20
  5. Step 5: Solve for x
    x = 103,433,358.20/13,771.49
  6. Step 6: Final answer
    x = 7,510.69

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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.