Home / 18,950.22-26,147.31-13,656.78

Finding the Fourth Proportional to 18,950.22, 26,147.31 and 13,656.78

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Solution

The fourth proportional to 18,950.22, 26,147.31 and 13,656.78 is: 18,843.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.22 : 26,147.31 = 13,656.78 : x
  2. Step 2: Convert to fraction form
    18,950.22/26,147.31 = 13,656.78/x
  3. Step 3: Cross multiply
    18,950.22x = 26,147.31 × 13,656.78
  4. Step 4: Simplify right side
    18,950.22x = 357,088,060.26
  5. Step 5: Solve for x
    x = 357,088,060.26/18,950.22
  6. Step 6: Final answer
    x = 18,843.48

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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.