Home / 13,382.82-18,468.45-7,414.58

Finding the Fourth Proportional to 13,382.82, 18,468.45 and 7,414.58

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Solution

The fourth proportional to 13,382.82, 18,468.45 and 7,414.58 is: 10,232.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.82 : 18,468.45 = 7,414.58 : x
  2. Step 2: Convert to fraction form
    13,382.82/18,468.45 = 7,414.58/x
  3. Step 3: Cross multiply
    13,382.82x = 18,468.45 × 7,414.58
  4. Step 4: Simplify right side
    13,382.82x = 136,935,846.17
  5. Step 5: Solve for x
    x = 136,935,846.17/13,382.82
  6. Step 6: Final answer
    x = 10,232.21

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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.