Home / 19,863.15-27,415.51-13,739.46

Finding the Fourth Proportional to 19,863.15, 27,415.51 and 13,739.46

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Solution

The fourth proportional to 19,863.15, 27,415.51 and 13,739.46 is: 18,963.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.15 : 27,415.51 = 13,739.46 : x
  2. Step 2: Convert to fraction form
    19,863.15/27,415.51 = 13,739.46/x
  3. Step 3: Cross multiply
    19,863.15x = 27,415.51 × 13,739.46
  4. Step 4: Simplify right side
    19,863.15x = 376,674,337.21
  5. Step 5: Solve for x
    x = 376,674,337.21/19,863.15
  6. Step 6: Final answer
    x = 18,963.48

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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.