Home / 14,640.87-20,190.57-9,609.45

Finding the Fourth Proportional to 14,640.87, 20,190.57 and 9,609.45

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Solution

The fourth proportional to 14,640.87, 20,190.57 and 9,609.45 is: 13,251.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.87 : 20,190.57 = 9,609.45 : x
  2. Step 2: Convert to fraction form
    14,640.87/20,190.57 = 9,609.45/x
  3. Step 3: Cross multiply
    14,640.87x = 20,190.57 × 9,609.45
  4. Step 4: Simplify right side
    14,640.87x = 194,020,348.60
  5. Step 5: Solve for x
    x = 194,020,348.60/14,640.87
  6. Step 6: Final answer
    x = 13,251.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.