Home / 12,940.32-17,858.28-7,276.85

Finding the Fourth Proportional to 12,940.32, 17,858.28 and 7,276.85

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Solution

The fourth proportional to 12,940.32, 17,858.28 and 7,276.85 is: 10,042.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940.32 : 17,858.28 = 7,276.85 : x
  2. Step 2: Convert to fraction form
    12,940.32/17,858.28 = 7,276.85/x
  3. Step 3: Cross multiply
    12,940.32x = 17,858.28 × 7,276.85
  4. Step 4: Simplify right side
    12,940.32x = 129,952,033.08
  5. Step 5: Solve for x
    x = 129,952,033.08/12,940.32
  6. Step 6: Final answer
    x = 10,042.41

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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.