Home / 19,843.37-27,385.10-13,117.19

Finding the Fourth Proportional to 19,843.37, 27,385.10 and 13,117.19

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Solution

The fourth proportional to 19,843.37, 27,385.10 and 13,117.19 is: 18,102.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,843.37 : 27,385.10 = 13,117.19 : x
  2. Step 2: Convert to fraction form
    19,843.37/27,385.10 = 13,117.19/x
  3. Step 3: Cross multiply
    19,843.37x = 27,385.10 × 13,117.19
  4. Step 4: Simplify right side
    19,843.37x = 359,215,661.12
  5. Step 5: Solve for x
    x = 359,215,661.12/19,843.37
  6. Step 6: Final answer
    x = 18,102.56

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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.