Home / 19,775.57-27,292.94-12,722.49

Finding the Fourth Proportional to 19,775.57, 27,292.94 and 12,722.49

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Solution

The fourth proportional to 19,775.57, 27,292.94 and 12,722.49 is: 17,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,775.57 : 27,292.94 = 12,722.49 : x
  2. Step 2: Convert to fraction form
    19,775.57/27,292.94 = 12,722.49/x
  3. Step 3: Cross multiply
    19,775.57x = 27,292.94 × 12,722.49
  4. Step 4: Simplify right side
    19,775.57x = 347,234,092.61
  5. Step 5: Solve for x
    x = 347,234,092.61/19,775.57
  6. Step 6: Final answer
    x = 17,558.74

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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.