Home / 19,516.86-29,280.77-7,838.28

Finding the Fourth Proportional to 19,516.86, 29,280.77 and 7,838.28

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Solution

The fourth proportional to 19,516.86, 29,280.77 and 7,838.28 is: 11,759.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,516.86 : 29,280.77 = 7,838.28 : x
  2. Step 2: Convert to fraction form
    19,516.86/29,280.77 = 7,838.28/x
  3. Step 3: Cross multiply
    19,516.86x = 29,280.77 × 7,838.28
  4. Step 4: Simplify right side
    19,516.86x = 229,510,873.88
  5. Step 5: Solve for x
    x = 229,510,873.88/19,516.86
  6. Step 6: Final answer
    x = 11,759.62

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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.