Home / 12,672.32-19,005.12-4,876.80

Finding the Fourth Proportional to 12,672.32, 19,005.12 and 4,876.80

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Solution

The fourth proportional to 12,672.32, 19,005.12 and 4,876.80 is: 7,313.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.32 : 19,005.12 = 4,876.80 : x
  2. Step 2: Convert to fraction form
    12,672.32/19,005.12 = 4,876.80/x
  3. Step 3: Cross multiply
    12,672.32x = 19,005.12 × 4,876.80
  4. Step 4: Simplify right side
    12,672.32x = 92,684,169.22
  5. Step 5: Solve for x
    x = 92,684,169.22/12,672.32
  6. Step 6: Final answer
    x = 7,313.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.