Home / 18,811.24-25,962.93-12,840.73

Finding the Fourth Proportional to 18,811.24, 25,962.93 and 12,840.73

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Solution

The fourth proportional to 18,811.24, 25,962.93 and 12,840.73 is: 17,722.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811.24 : 25,962.93 = 12,840.73 : x
  2. Step 2: Convert to fraction form
    18,811.24/25,962.93 = 12,840.73/x
  3. Step 3: Cross multiply
    18,811.24x = 25,962.93 × 12,840.73
  4. Step 4: Simplify right side
    18,811.24x = 333,382,909.23
  5. Step 5: Solve for x
    x = 333,382,909.23/18,811.24
  6. Step 6: Final answer
    x = 17,722.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.