Home / 14,636-20,190.48-9,921.76

Finding the Fourth Proportional to 14,636, 20,190.48 and 9,921.76

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Solution

The fourth proportional to 14,636, 20,190.48 and 9,921.76 is: 13,687.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,636 : 20,190.48 = 9,921.76 : x
  2. Step 2: Convert to fraction form
    14,636/20,190.48 = 9,921.76/x
  3. Step 3: Cross multiply
    14,636x = 20,190.48 × 9,921.76
  4. Step 4: Simplify right side
    14,636x = 200,325,096.84
  5. Step 5: Solve for x
    x = 200,325,096.84/14,636
  6. Step 6: Final answer
    x = 13,687.15

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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.