Home / 18,147.78-25,043.29-10,190.34

Finding the Fourth Proportional to 18,147.78, 25,043.29 and 10,190.34

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Solution

The fourth proportional to 18,147.78, 25,043.29 and 10,190.34 is: 14,062.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.78 : 25,043.29 = 10,190.34 : x
  2. Step 2: Convert to fraction form
    18,147.78/25,043.29 = 10,190.34/x
  3. Step 3: Cross multiply
    18,147.78x = 25,043.29 × 10,190.34
  4. Step 4: Simplify right side
    18,147.78x = 255,199,614.34
  5. Step 5: Solve for x
    x = 255,199,614.34/18,147.78
  6. Step 6: Final answer
    x = 14,062.30

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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.