Home / 19,910.18-27,475.80-10,958.06

Finding the Fourth Proportional to 19,910.18, 27,475.80 and 10,958.06

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Solution

The fourth proportional to 19,910.18, 27,475.80 and 10,958.06 is: 15,121.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,910.18 : 27,475.80 = 10,958.06 : x
  2. Step 2: Convert to fraction form
    19,910.18/27,475.80 = 10,958.06/x
  3. Step 3: Cross multiply
    19,910.18x = 27,475.80 × 10,958.06
  4. Step 4: Simplify right side
    19,910.18x = 301,081,464.95
  5. Step 5: Solve for x
    x = 301,081,464.95/19,910.18
  6. Step 6: Final answer
    x = 15,121.99

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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.