Home / 13,170.87-18,176.48-7,202.48

Finding the Fourth Proportional to 13,170.87, 18,176.48 and 7,202.48

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Solution

The fourth proportional to 13,170.87, 18,176.48 and 7,202.48 is: 9,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.87 : 18,176.48 = 7,202.48 : x
  2. Step 2: Convert to fraction form
    13,170.87/18,176.48 = 7,202.48/x
  3. Step 3: Cross multiply
    13,170.87x = 18,176.48 × 7,202.48
  4. Step 4: Simplify right side
    13,170.87x = 130,915,733.67
  5. Step 5: Solve for x
    x = 130,915,733.67/13,170.87
  6. Step 6: Final answer
    x = 9,939.79

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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.