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Finding the Fourth Proportional to 14,170.49, 19,555.29 and 7,882.86

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Solution

The fourth proportional to 14,170.49, 19,555.29 and 7,882.86 is: 10,878.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,170.49 : 19,555.29 = 7,882.86 : x
  2. Step 2: Convert to fraction form
    14,170.49/19,555.29 = 7,882.86/x
  3. Step 3: Cross multiply
    14,170.49x = 19,555.29 × 7,882.86
  4. Step 4: Simplify right side
    14,170.49x = 154,151,613.33
  5. Step 5: Solve for x
    x = 154,151,613.33/14,170.49
  6. Step 6: Final answer
    x = 10,878.36

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