Home / 18,949.22-26,145.93-13,655.78

Finding the Fourth Proportional to 18,949.22, 26,145.93 and 13,655.78

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Solution

The fourth proportional to 18,949.22, 26,145.93 and 13,655.78 is: 18,842.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.22 : 26,145.93 = 13,655.78 : x
  2. Step 2: Convert to fraction form
    18,949.22/26,145.93 = 13,655.78/x
  3. Step 3: Cross multiply
    18,949.22x = 26,145.93 × 13,655.78
  4. Step 4: Simplify right side
    18,949.22x = 357,043,067.98
  5. Step 5: Solve for x
    x = 357,043,067.98/18,949.22
  6. Step 6: Final answer
    x = 18,842.10

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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.