Home / 12,815.96-19,212.53-6,896.07

Finding the Fourth Proportional to 12,815.96, 19,212.53 and 6,896.07

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Solution

The fourth proportional to 12,815.96, 19,212.53 and 6,896.07 is: 10,337.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815.96 : 19,212.53 = 6,896.07 : x
  2. Step 2: Convert to fraction form
    12,815.96/19,212.53 = 6,896.07/x
  3. Step 3: Cross multiply
    12,815.96x = 19,212.53 × 6,896.07
  4. Step 4: Simplify right side
    12,815.96x = 132,490,917.28
  5. Step 5: Solve for x
    x = 132,490,917.28/12,815.96
  6. Step 6: Final answer
    x = 10,337.97

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1.5x scale

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.