Home / 12,923.80-19,282.30-11,520.52

Finding the Fourth Proportional to 12,923.80, 19,282.30 and 11,520.52

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Solution

The fourth proportional to 12,923.80, 19,282.30 and 11,520.52 is: 17,188.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,923.80 : 19,282.30 = 11,520.52 : x
  2. Step 2: Convert to fraction form
    12,923.80/19,282.30 = 11,520.52/x
  3. Step 3: Cross multiply
    12,923.80x = 19,282.30 × 11,520.52
  4. Step 4: Simplify right side
    12,923.80x = 222,142,122.80
  5. Step 5: Solve for x
    x = 222,142,122.80/12,923.80
  6. Step 6: Final answer
    x = 17,188.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.