Home / 12,184.47-16,814.57-6,879.20

Finding the Fourth Proportional to 12,184.47, 16,814.57 and 6,879.20

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Solution

The fourth proportional to 12,184.47, 16,814.57 and 6,879.20 is: 9,493.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,184.47 : 16,814.57 = 6,879.20 : x
  2. Step 2: Convert to fraction form
    12,184.47/16,814.57 = 6,879.20/x
  3. Step 3: Cross multiply
    12,184.47x = 16,814.57 × 6,879.20
  4. Step 4: Simplify right side
    12,184.47x = 115,670,671.48
  5. Step 5: Solve for x
    x = 115,670,671.48/12,184.47
  6. Step 6: Final answer
    x = 9,493.29

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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.