Home / 18,211.55-27,257.18-12,864.33

Finding the Fourth Proportional to 18,211.55, 27,257.18 and 12,864.33

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Solution

The fourth proportional to 18,211.55, 27,257.18 and 12,864.33 is: 19,254.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.55 : 27,257.18 = 12,864.33 : x
  2. Step 2: Convert to fraction form
    18,211.55/27,257.18 = 12,864.33/x
  3. Step 3: Cross multiply
    18,211.55x = 27,257.18 × 12,864.33
  4. Step 4: Simplify right side
    18,211.55x = 350,645,294.07
  5. Step 5: Solve for x
    x = 350,645,294.07/18,211.55
  6. Step 6: Final answer
    x = 19,254.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.