Home / 19,007.36-28,512.48-5,156

Finding the Fourth Proportional to 19,007.36, 28,512.48 and 5,156

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Solution

The fourth proportional to 19,007.36, 28,512.48 and 5,156 is: 7,734.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.36 : 28,512.48 = 5,156 : x
  2. Step 2: Convert to fraction form
    19,007.36/28,512.48 = 5,156/x
  3. Step 3: Cross multiply
    19,007.36x = 28,512.48 × 5,156
  4. Step 4: Simplify right side
    19,007.36x = 147,010,346.88
  5. Step 5: Solve for x
    x = 147,010,346.88/19,007.36
  6. Step 6: Final answer
    x = 7,734.39

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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.