Home / 18,219.31-25,142.13-10,261.35

Finding the Fourth Proportional to 18,219.31, 25,142.13 and 10,261.35

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Solution

The fourth proportional to 18,219.31, 25,142.13 and 10,261.35 is: 14,160.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.31 : 25,142.13 = 10,261.35 : x
  2. Step 2: Convert to fraction form
    18,219.31/25,142.13 = 10,261.35/x
  3. Step 3: Cross multiply
    18,219.31x = 25,142.13 × 10,261.35
  4. Step 4: Simplify right side
    18,219.31x = 257,992,195.68
  5. Step 5: Solve for x
    x = 257,992,195.68/18,219.31
  6. Step 6: Final answer
    x = 14,160.37

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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.