Home / 12,964.38-17,890.95-7,375.74

Finding the Fourth Proportional to 12,964.38, 17,890.95 and 7,375.74

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Solution

The fourth proportional to 12,964.38, 17,890.95 and 7,375.74 is: 10,178.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964.38 : 17,890.95 = 7,375.74 : x
  2. Step 2: Convert to fraction form
    12,964.38/17,890.95 = 7,375.74/x
  3. Step 3: Cross multiply
    12,964.38x = 17,890.95 × 7,375.74
  4. Step 4: Simplify right side
    12,964.38x = 131,958,995.55
  5. Step 5: Solve for x
    x = 131,958,995.55/12,964.38
  6. Step 6: Final answer
    x = 10,178.58

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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.