Home / 12,390.45-17,096.25-7,353.96

Finding the Fourth Proportional to 12,390.45, 17,096.25 and 7,353.96

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Solution

The fourth proportional to 12,390.45, 17,096.25 and 7,353.96 is: 10,146.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390.45 : 17,096.25 = 7,353.96 : x
  2. Step 2: Convert to fraction form
    12,390.45/17,096.25 = 7,353.96/x
  3. Step 3: Cross multiply
    12,390.45x = 17,096.25 × 7,353.96
  4. Step 4: Simplify right side
    12,390.45x = 125,725,138.65
  5. Step 5: Solve for x
    x = 125,725,138.65/12,390.45
  6. Step 6: Final answer
    x = 10,146.94

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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.