Home / 13,170.42-18,176.40-7,202.94

Finding the Fourth Proportional to 13,170.42, 18,176.40 and 7,202.94

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Solution

The fourth proportional to 13,170.42, 18,176.40 and 7,202.94 is: 9,940.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.42 : 18,176.40 = 7,202.94 : x
  2. Step 2: Convert to fraction form
    13,170.42/18,176.40 = 7,202.94/x
  3. Step 3: Cross multiply
    13,170.42x = 18,176.40 × 7,202.94
  4. Step 4: Simplify right side
    13,170.42x = 130,923,518.62
  5. Step 5: Solve for x
    x = 130,923,518.62/13,170.42
  6. Step 6: Final answer
    x = 9,940.72

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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.