Home / 12,709.44-19,051.20-7,162.56

Finding the Fourth Proportional to 12,709.44, 19,051.20 and 7,162.56

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Solution

The fourth proportional to 12,709.44, 19,051.20 and 7,162.56 is: 10,736.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709.44 : 19,051.20 = 7,162.56 : x
  2. Step 2: Convert to fraction form
    12,709.44/19,051.20 = 7,162.56/x
  3. Step 3: Cross multiply
    12,709.44x = 19,051.20 × 7,162.56
  4. Step 4: Simplify right side
    12,709.44x = 136,455,363.07
  5. Step 5: Solve for x
    x = 136,455,363.07/12,709.44
  6. Step 6: Final answer
    x = 10,736.54

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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.