Home / 19,816.80-27,365.68-12,755.52

Finding the Fourth Proportional to 19,816.80, 27,365.68 and 12,755.52

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Solution

The fourth proportional to 19,816.80, 27,365.68 and 12,755.52 is: 17,614.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,816.80 : 27,365.68 = 12,755.52 : x
  2. Step 2: Convert to fraction form
    19,816.80/27,365.68 = 12,755.52/x
  3. Step 3: Cross multiply
    19,816.80x = 27,365.68 × 12,755.52
  4. Step 4: Simplify right side
    19,816.80x = 349,063,478.55
  5. Step 5: Solve for x
    x = 349,063,478.55/19,816.80
  6. Step 6: Final answer
    x = 17,614.52

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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.