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Finding the Fourth Proportional to 10,783, 14,878.92 and 6,067.18

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Solution

The fourth proportional to 10,783, 14,878.92 and 6,067.18 is: 8,371.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,783 : 14,878.92 = 6,067.18 : x
  2. Step 2: Convert to fraction form
    10,783/14,878.92 = 6,067.18/x
  3. Step 3: Cross multiply
    10,783x = 14,878.92 × 6,067.18
  4. Step 4: Simplify right side
    10,783x = 90,273,085.85
  5. Step 5: Solve for x
    x = 90,273,085.85/10,783
  6. Step 6: Final answer
    x = 8,371.80

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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.