Home / 18,975.12-26,186.68-11,019.84

Finding the Fourth Proportional to 18,975.12, 26,186.68 and 11,019.84

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Solution

The fourth proportional to 18,975.12, 26,186.68 and 11,019.84 is: 15,207.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,975.12 : 26,186.68 = 11,019.84 : x
  2. Step 2: Convert to fraction form
    18,975.12/26,186.68 = 11,019.84/x
  3. Step 3: Cross multiply
    18,975.12x = 26,186.68 × 11,019.84
  4. Step 4: Simplify right side
    18,975.12x = 288,573,023.73
  5. Step 5: Solve for x
    x = 288,573,023.73/18,975.12
  6. Step 6: Final answer
    x = 15,207.97

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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.