Home / 19,086.56-28,639.60-8,696.96

Finding the Fourth Proportional to 19,086.56, 28,639.60 and 8,696.96

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Solution

The fourth proportional to 19,086.56, 28,639.60 and 8,696.96 is: 13,049.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,086.56 : 28,639.60 = 8,696.96 : x
  2. Step 2: Convert to fraction form
    19,086.56/28,639.60 = 8,696.96/x
  3. Step 3: Cross multiply
    19,086.56x = 28,639.60 × 8,696.96
  4. Step 4: Simplify right side
    19,086.56x = 249,077,455.62
  5. Step 5: Solve for x
    x = 249,077,455.62/19,086.56
  6. Step 6: Final answer
    x = 13,049.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.