Home / 14,699.36-20,282.96-8,731.28

Finding the Fourth Proportional to 14,699.36, 20,282.96 and 8,731.28

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Solution

The fourth proportional to 14,699.36, 20,282.96 and 8,731.28 is: 12,047.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,699.36 : 20,282.96 = 8,731.28 : x
  2. Step 2: Convert to fraction form
    14,699.36/20,282.96 = 8,731.28/x
  3. Step 3: Cross multiply
    14,699.36x = 20,282.96 × 8,731.28
  4. Step 4: Simplify right side
    14,699.36x = 177,096,202.99
  5. Step 5: Solve for x
    x = 177,096,202.99/14,699.36
  6. Step 6: Final answer
    x = 12,047.89

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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.