Home / 18,934.64-26,137.84-11,859.60

Finding the Fourth Proportional to 18,934.64, 26,137.84 and 11,859.60

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Solution

The fourth proportional to 18,934.64, 26,137.84 and 11,859.60 is: 16,371.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.64 : 26,137.84 = 11,859.60 : x
  2. Step 2: Convert to fraction form
    18,934.64/26,137.84 = 11,859.60/x
  3. Step 3: Cross multiply
    18,934.64x = 26,137.84 × 11,859.60
  4. Step 4: Simplify right side
    18,934.64x = 309,984,327.26
  5. Step 5: Solve for x
    x = 309,984,327.26/18,934.64
  6. Step 6: Final answer
    x = 16,371.28

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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.