Home / 14,249.60-21,377.35-7,137.49

Finding the Fourth Proportional to 14,249.60, 21,377.35 and 7,137.49

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Solution

The fourth proportional to 14,249.60, 21,377.35 and 7,137.49 is: 10,707.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,249.60 : 21,377.35 = 7,137.49 : x
  2. Step 2: Convert to fraction form
    14,249.60/21,377.35 = 7,137.49/x
  3. Step 3: Cross multiply
    14,249.60x = 21,377.35 × 7,137.49
  4. Step 4: Simplify right side
    14,249.60x = 152,580,621.85
  5. Step 5: Solve for x
    x = 152,580,621.85/14,249.60
  6. Step 6: Final answer
    x = 10,707.71

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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.