Home / 19,812.51-27,344.07-12,261.27

Finding the Fourth Proportional to 19,812.51, 27,344.07 and 12,261.27

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Solution

The fourth proportional to 19,812.51, 27,344.07 and 12,261.27 is: 16,922.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.51 : 27,344.07 = 12,261.27 : x
  2. Step 2: Convert to fraction form
    19,812.51/27,344.07 = 12,261.27/x
  3. Step 3: Cross multiply
    19,812.51x = 27,344.07 × 12,261.27
  4. Step 4: Simplify right side
    19,812.51x = 335,272,963.86
  5. Step 5: Solve for x
    x = 335,272,963.86/19,812.51
  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.