Home / 12,182.28-16,811.46-6,878.13

Finding the Fourth Proportional to 12,182.28, 16,811.46 and 6,878.13

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Solution

The fourth proportional to 12,182.28, 16,811.46 and 6,878.13 is: 9,491.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.28 : 16,811.46 = 6,878.13 : x
  2. Step 2: Convert to fraction form
    12,182.28/16,811.46 = 6,878.13/x
  3. Step 3: Cross multiply
    12,182.28x = 16,811.46 × 6,878.13
  4. Step 4: Simplify right side
    12,182.28x = 115,631,407.37
  5. Step 5: Solve for x
    x = 115,631,407.37/12,182.28
  6. Step 6: Final answer
    x = 9,491.77

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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.