Home / 12,772.27-19,125.60-7,826.92

Finding the Fourth Proportional to 12,772.27, 19,125.60 and 7,826.92

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Solution

The fourth proportional to 12,772.27, 19,125.60 and 7,826.92 is: 11,720.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.27 : 19,125.60 = 7,826.92 : x
  2. Step 2: Convert to fraction form
    12,772.27/19,125.60 = 7,826.92/x
  3. Step 3: Cross multiply
    12,772.27x = 19,125.60 × 7,826.92
  4. Step 4: Simplify right side
    12,772.27x = 149,694,541.15
  5. Step 5: Solve for x
    x = 149,694,541.15/12,772.27
  6. Step 6: Final answer
    x = 11,720.28

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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.