Home / 19,215.63-28,826.42-8,122.36

Finding the Fourth Proportional to 19,215.63, 28,826.42 and 8,122.36

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Solution

The fourth proportional to 19,215.63, 28,826.42 and 8,122.36 is: 12,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.63 : 28,826.42 = 8,122.36 : x
  2. Step 2: Convert to fraction form
    19,215.63/28,826.42 = 8,122.36/x
  3. Step 3: Cross multiply
    19,215.63x = 28,826.42 × 8,122.36
  4. Step 4: Simplify right side
    19,215.63x = 234,138,560.75
  5. Step 5: Solve for x
    x = 234,138,560.75/19,215.63
  6. Step 6: Final answer
    x = 12,184.80

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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.