Home / 8,458.52-11,671.62-4,919

Finding the Fourth Proportional to 8,458.52, 11,671.62 and 4,919

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Solution

The fourth proportional to 8,458.52, 11,671.62 and 4,919 is: 6,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.52 : 11,671.62 = 4,919 : x
  2. Step 2: Convert to fraction form
    8,458.52/11,671.62 = 4,919/x
  3. Step 3: Cross multiply
    8,458.52x = 11,671.62 × 4,919
  4. Step 4: Simplify right side
    8,458.52x = 57,412,698.78
  5. Step 5: Solve for x
    x = 57,412,698.78/8,458.52
  6. Step 6: Final answer
    x = 6,787.56

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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.