Home / 14,623.76-20,149.44-9,899.84

Finding the Fourth Proportional to 14,623.76, 20,149.44 and 9,899.84

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Solution

The fourth proportional to 14,623.76, 20,149.44 and 9,899.84 is: 13,640.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,623.76 : 20,149.44 = 9,899.84 : x
  2. Step 2: Convert to fraction form
    14,623.76/20,149.44 = 9,899.84/x
  3. Step 3: Cross multiply
    14,623.76x = 20,149.44 × 9,899.84
  4. Step 4: Simplify right side
    14,623.76x = 199,476,232.09
  5. Step 5: Solve for x
    x = 199,476,232.09/14,623.76
  6. Step 6: Final answer
    x = 13,640.56

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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.