Home / 19,812.52-27,344.07-12,261.28

Finding the Fourth Proportional to 19,812.52, 27,344.07 and 12,261.28

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Solution

The fourth proportional to 19,812.52, 27,344.07 and 12,261.28 is: 16,922.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.52 : 27,344.07 = 12,261.28 : x
  2. Step 2: Convert to fraction form
    19,812.52/27,344.07 = 12,261.28/x
  3. Step 3: Cross multiply
    19,812.52x = 27,344.07 × 12,261.28
  4. Step 4: Simplify right side
    19,812.52x = 335,273,161.89
  5. Step 5: Solve for x
    x = 335,273,161.89/19,812.52
  6. Step 6: Final answer
    x = 16,922.29

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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.