Home / 13,446.39-20,149.97-7,572.99

Finding the Fourth Proportional to 13,446.39, 20,149.97 and 7,572.99

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Solution

The fourth proportional to 13,446.39, 20,149.97 and 7,572.99 is: 11,348.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.39 : 20,149.97 = 7,572.99 : x
  2. Step 2: Convert to fraction form
    13,446.39/20,149.97 = 7,572.99/x
  3. Step 3: Cross multiply
    13,446.39x = 20,149.97 × 7,572.99
  4. Step 4: Simplify right side
    13,446.39x = 152,595,483.45
  5. Step 5: Solve for x
    x = 152,595,483.45/13,446.39
  6. Step 6: Final answer
    x = 11,348.44

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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.