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Finding the Fourth Proportional to 12,751.68, 17,596.56 and 7,162.56

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Solution

The fourth proportional to 12,751.68, 17,596.56 and 7,162.56 is: 9,883.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,751.68 : 17,596.56 = 7,162.56 : x
  2. Step 2: Convert to fraction form
    12,751.68/17,596.56 = 7,162.56/x
  3. Step 3: Cross multiply
    12,751.68x = 17,596.56 × 7,162.56
  4. Step 4: Simplify right side
    12,751.68x = 126,036,416.79
  5. Step 5: Solve for x
    x = 126,036,416.79/12,751.68
  6. Step 6: Final answer
    x = 9,883.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.