Home / 12,828.68-17,703.39-7,163.52

Finding the Fourth Proportional to 12,828.68, 17,703.39 and 7,163.52

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Solution

The fourth proportional to 12,828.68, 17,703.39 and 7,163.52 is: 9,885.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828.68 : 17,703.39 = 7,163.52 : x
  2. Step 2: Convert to fraction form
    12,828.68/17,703.39 = 7,163.52/x
  3. Step 3: Cross multiply
    12,828.68x = 17,703.39 × 7,163.52
  4. Step 4: Simplify right side
    12,828.68x = 126,818,588.33
  5. Step 5: Solve for x
    x = 126,818,588.33/12,828.68
  6. Step 6: Final answer
    x = 9,885.55

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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.