Home / 12,790.65-19,160.43-10,162.61

Finding the Fourth Proportional to 12,790.65, 19,160.43 and 10,162.61

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Solution

The fourth proportional to 12,790.65, 19,160.43 and 10,162.61 is: 15,223.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.65 : 19,160.43 = 10,162.61 : x
  2. Step 2: Convert to fraction form
    12,790.65/19,160.43 = 10,162.61/x
  3. Step 3: Cross multiply
    12,790.65x = 19,160.43 × 10,162.61
  4. Step 4: Simplify right side
    12,790.65x = 194,719,977.52
  5. Step 5: Solve for x
    x = 194,719,977.52/12,790.65
  6. Step 6: Final answer
    x = 15,223.62

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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.