Home / 19,278.76-26,607.56-12,205.84

Finding the Fourth Proportional to 19,278.76, 26,607.56 and 12,205.84

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Solution

The fourth proportional to 19,278.76, 26,607.56 and 12,205.84 is: 16,845.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.76 : 26,607.56 = 12,205.84 : x
  2. Step 2: Convert to fraction form
    19,278.76/26,607.56 = 12,205.84/x
  3. Step 3: Cross multiply
    19,278.76x = 26,607.56 × 12,205.84
  4. Step 4: Simplify right side
    19,278.76x = 324,767,620.15
  5. Step 5: Solve for x
    x = 324,767,620.15/19,278.76
  6. Step 6: Final answer
    x = 16,845.88

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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.