Home / 13,093.70-19,640.55-4,328.90

Finding the Fourth Proportional to 13,093.70, 19,640.55 and 4,328.90

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Solution

The fourth proportional to 13,093.70, 19,640.55 and 4,328.90 is: 6,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,093.70 : 19,640.55 = 4,328.90 : x
  2. Step 2: Convert to fraction form
    13,093.70/19,640.55 = 4,328.90/x
  3. Step 3: Cross multiply
    13,093.70x = 19,640.55 × 4,328.90
  4. Step 4: Simplify right side
    13,093.70x = 85,021,976.90
  5. Step 5: Solve for x
    x = 85,021,976.90/13,093.70
  6. Step 6: Final answer
    x = 6,493.35

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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.