Home / 12,998.26-17,936.40-7,332.58

Finding the Fourth Proportional to 12,998.26, 17,936.40 and 7,332.58

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Solution

The fourth proportional to 12,998.26, 17,936.40 and 7,332.58 is: 10,118.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998.26 : 17,936.40 = 7,332.58 : x
  2. Step 2: Convert to fraction form
    12,998.26/17,936.40 = 7,332.58/x
  3. Step 3: Cross multiply
    12,998.26x = 17,936.40 × 7,332.58
  4. Step 4: Simplify right side
    12,998.26x = 131,520,087.91
  5. Step 5: Solve for x
    x = 131,520,087.91/12,998.26
  6. Step 6: Final answer
    x = 10,118.28

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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.