Home / 12,516.70-17,273.88-7,211.86

Finding the Fourth Proportional to 12,516.70, 17,273.88 and 7,211.86

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Solution

The fourth proportional to 12,516.70, 17,273.88 and 7,211.86 is: 9,952.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.70 : 17,273.88 = 7,211.86 : x
  2. Step 2: Convert to fraction form
    12,516.70/17,273.88 = 7,211.86/x
  3. Step 3: Cross multiply
    12,516.70x = 17,273.88 × 7,211.86
  4. Step 4: Simplify right side
    12,516.70x = 124,576,829.90
  5. Step 5: Solve for x
    x = 124,576,829.90/12,516.70
  6. Step 6: Final answer
    x = 9,952.85

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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.