Home / 19,321.24-26,660.10-12,245.80

Finding the Fourth Proportional to 19,321.24, 26,660.10 and 12,245.80

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Solution

The fourth proportional to 19,321.24, 26,660.10 and 12,245.80 is: 16,897.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.24 : 26,660.10 = 12,245.80 : x
  2. Step 2: Convert to fraction form
    19,321.24/26,660.10 = 12,245.80/x
  3. Step 3: Cross multiply
    19,321.24x = 26,660.10 × 12,245.80
  4. Step 4: Simplify right side
    19,321.24x = 326,474,252.58
  5. Step 5: Solve for x
    x = 326,474,252.58/19,321.24
  6. Step 6: Final answer
    x = 16,897.17

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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.