Home / 13,178.23-18,183.45-7,512.73

Finding the Fourth Proportional to 13,178.23, 18,183.45 and 7,512.73

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Solution

The fourth proportional to 13,178.23, 18,183.45 and 7,512.73 is: 10,366.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178.23 : 18,183.45 = 7,512.73 : x
  2. Step 2: Convert to fraction form
    13,178.23/18,183.45 = 7,512.73/x
  3. Step 3: Cross multiply
    13,178.23x = 18,183.45 × 7,512.73
  4. Step 4: Simplify right side
    13,178.23x = 136,607,350.32
  5. Step 5: Solve for x
    x = 136,607,350.32/13,178.23
  6. Step 6: Final answer
    x = 10,366.14

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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.