Home / 12,942.39-17,860.68-7,276.82

Finding the Fourth Proportional to 12,942.39, 17,860.68 and 7,276.82

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Solution

The fourth proportional to 12,942.39, 17,860.68 and 7,276.82 is: 10,042.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.39 : 17,860.68 = 7,276.82 : x
  2. Step 2: Convert to fraction form
    12,942.39/17,860.68 = 7,276.82/x
  3. Step 3: Cross multiply
    12,942.39x = 17,860.68 × 7,276.82
  4. Step 4: Simplify right side
    12,942.39x = 129,968,953.44
  5. Step 5: Solve for x
    x = 129,968,953.44/12,942.39
  6. Step 6: Final answer
    x = 10,042.11

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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.