Home / 18,147.78-25,043.85-10,190.70

Finding the Fourth Proportional to 18,147.78, 25,043.85 and 10,190.70

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Solution

The fourth proportional to 18,147.78, 25,043.85 and 10,190.70 is: 14,063.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.78 : 25,043.85 = 10,190.70 : x
  2. Step 2: Convert to fraction form
    18,147.78/25,043.85 = 10,190.70/x
  3. Step 3: Cross multiply
    18,147.78x = 25,043.85 × 10,190.70
  4. Step 4: Simplify right side
    18,147.78x = 255,214,362.20
  5. Step 5: Solve for x
    x = 255,214,362.20/18,147.78
  6. Step 6: Final answer
    x = 14,063.12

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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.