Home / 18,261.10-25,201.50-10,300.42

Finding the Fourth Proportional to 18,261.10, 25,201.50 and 10,300.42

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Solution

The fourth proportional to 18,261.10, 25,201.50 and 10,300.42 is: 14,215.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.10 : 25,201.50 = 10,300.42 : x
  2. Step 2: Convert to fraction form
    18,261.10/25,201.50 = 10,300.42/x
  3. Step 3: Cross multiply
    18,261.10x = 25,201.50 × 10,300.42
  4. Step 4: Simplify right side
    18,261.10x = 259,585,908.62
  5. Step 5: Solve for x
    x = 259,585,908.62/18,261.10
  6. Step 6: Final answer
    x = 14,215.24

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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.