Home / 18,414.08-25,410.56-10,455.22

Finding the Fourth Proportional to 18,414.08, 25,410.56 and 10,455.22

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Solution

The fourth proportional to 18,414.08, 25,410.56 and 10,455.22 is: 14,427.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,414.08 : 25,410.56 = 10,455.22 : x
  2. Step 2: Convert to fraction form
    18,414.08/25,410.56 = 10,455.22/x
  3. Step 3: Cross multiply
    18,414.08x = 25,410.56 × 10,455.22
  4. Step 4: Simplify right side
    18,414.08x = 265,672,995.12
  5. Step 5: Solve for x
    x = 265,672,995.12/18,414.08
  6. Step 6: Final answer
    x = 14,427.71

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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.