Home / 12,823.20-19,234.80-11,095.20

Finding the Fourth Proportional to 12,823.20, 19,234.80 and 11,095.20

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Solution

The fourth proportional to 12,823.20, 19,234.80 and 11,095.20 is: 16,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,823.20 : 19,234.80 = 11,095.20 : x
  2. Step 2: Convert to fraction form
    12,823.20/19,234.80 = 11,095.20/x
  3. Step 3: Cross multiply
    12,823.20x = 19,234.80 × 11,095.20
  4. Step 4: Simplify right side
    12,823.20x = 213,413,952.96
  5. Step 5: Solve for x
    x = 213,413,952.96/12,823.20
  6. Step 6: Final answer
    x = 16,642.80

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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.