Home / 12,179.58-16,811.07-6,877.50

Finding the Fourth Proportional to 12,179.58, 16,811.07 and 6,877.50

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Solution

The fourth proportional to 12,179.58, 16,811.07 and 6,877.50 is: 9,492.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179.58 : 16,811.07 = 6,877.50 : x
  2. Step 2: Convert to fraction form
    12,179.58/16,811.07 = 6,877.50/x
  3. Step 3: Cross multiply
    12,179.58x = 16,811.07 × 6,877.50
  4. Step 4: Simplify right side
    12,179.58x = 115,618,133.93
  5. Step 5: Solve for x
    x = 115,618,133.93/12,179.58
  6. Step 6: Final answer
    x = 9,492.78

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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.