Home / 8,921.88-13,383-3,377.84

Finding the Fourth Proportional to 8,921.88, 13,383 and 3,377.84

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Solution

The fourth proportional to 8,921.88, 13,383 and 3,377.84 is: 5,066.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.88 : 13,383 = 3,377.84 : x
  2. Step 2: Convert to fraction form
    8,921.88/13,383 = 3,377.84/x
  3. Step 3: Cross multiply
    8,921.88x = 13,383 × 3,377.84
  4. Step 4: Simplify right side
    8,921.88x = 45,205,565.81
  5. Step 5: Solve for x
    x = 45,205,565.81/8,921.88
  6. Step 6: Final answer
    x = 5,066.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.