Home / 12,942.09-17,860.02-7,276.85

Finding the Fourth Proportional to 12,942.09, 17,860.02 and 7,276.85

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Solution

The fourth proportional to 12,942.09, 17,860.02 and 7,276.85 is: 10,042.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.09 : 17,860.02 = 7,276.85 : x
  2. Step 2: Convert to fraction form
    12,942.09/17,860.02 = 7,276.85/x
  3. Step 3: Cross multiply
    12,942.09x = 17,860.02 × 7,276.85
  4. Step 4: Simplify right side
    12,942.09x = 129,964,712.99
  5. Step 5: Solve for x
    x = 129,964,712.99/12,942.09
  6. Step 6: Final answer
    x = 10,042.02

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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.