Home / 11,425.68-17,120.88-7,713.36

Finding the Fourth Proportional to 11,425.68, 17,120.88 and 7,713.36

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Solution

The fourth proportional to 11,425.68, 17,120.88 and 7,713.36 is: 11,558.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.68 : 17,120.88 = 7,713.36 : x
  2. Step 2: Convert to fraction form
    11,425.68/17,120.88 = 7,713.36/x
  3. Step 3: Cross multiply
    11,425.68x = 17,120.88 × 7,713.36
  4. Step 4: Simplify right side
    11,425.68x = 132,059,510.96
  5. Step 5: Solve for x
    x = 132,059,510.96/11,425.68
  6. Step 6: Final answer
    x = 11,558.13

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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.