Home / 12,964.76-17,891.40-7,299.60

Finding the Fourth Proportional to 12,964.76, 17,891.40 and 7,299.60

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Solution

The fourth proportional to 12,964.76, 17,891.40 and 7,299.60 is: 10,073.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964.76 : 17,891.40 = 7,299.60 : x
  2. Step 2: Convert to fraction form
    12,964.76/17,891.40 = 7,299.60/x
  3. Step 3: Cross multiply
    12,964.76x = 17,891.40 × 7,299.60
  4. Step 4: Simplify right side
    12,964.76x = 130,600,063.44
  5. Step 5: Solve for x
    x = 130,600,063.44/12,964.76
  6. Step 6: Final answer
    x = 10,073.47

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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.