Home / 16,418.40-22,649.52-11,935.20

Finding the Fourth Proportional to 16,418.40, 22,649.52 and 11,935.20

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Solution

The fourth proportional to 16,418.40, 22,649.52 and 11,935.20 is: 16,464.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,418.40 : 22,649.52 = 11,935.20 : x
  2. Step 2: Convert to fraction form
    16,418.40/22,649.52 = 11,935.20/x
  3. Step 3: Cross multiply
    16,418.40x = 22,649.52 × 11,935.20
  4. Step 4: Simplify right side
    16,418.40x = 270,326,551.10
  5. Step 5: Solve for x
    x = 270,326,551.10/16,418.40
  6. Step 6: Final answer
    x = 16,464.85

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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.