Home / 18,218.92-25,137.72-10,261.15

Finding the Fourth Proportional to 18,218.92, 25,137.72 and 10,261.15

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Solution

The fourth proportional to 18,218.92, 25,137.72 and 10,261.15 is: 14,157.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.92 : 25,137.72 = 10,261.15 : x
  2. Step 2: Convert to fraction form
    18,218.92/25,137.72 = 10,261.15/x
  3. Step 3: Cross multiply
    18,218.92x = 25,137.72 × 10,261.15
  4. Step 4: Simplify right side
    18,218.92x = 257,941,738.58
  5. Step 5: Solve for x
    x = 257,941,738.58/18,218.92
  6. Step 6: Final answer
    x = 14,157.90

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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.