Home / 19,792.80-27,306.72-12,723.12

Finding the Fourth Proportional to 19,792.80, 27,306.72 and 12,723.12

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Solution

The fourth proportional to 19,792.80, 27,306.72 and 12,723.12 is: 17,553.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792.80 : 27,306.72 = 12,723.12 : x
  2. Step 2: Convert to fraction form
    19,792.80/27,306.72 = 12,723.12/x
  3. Step 3: Cross multiply
    19,792.80x = 27,306.72 × 12,723.12
  4. Step 4: Simplify right side
    19,792.80x = 347,426,675.37
  5. Step 5: Solve for x
    x = 347,426,675.37/19,792.80
  6. Step 6: Final answer
    x = 17,553.18

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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.