Home / 14,087.62-21,121.80-5,765.14

Finding the Fourth Proportional to 14,087.62, 21,121.80 and 5,765.14

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Solution

The fourth proportional to 14,087.62, 21,121.80 and 5,765.14 is: 8,643.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,087.62 : 21,121.80 = 5,765.14 : x
  2. Step 2: Convert to fraction form
    14,087.62/21,121.80 = 5,765.14/x
  3. Step 3: Cross multiply
    14,087.62x = 21,121.80 × 5,765.14
  4. Step 4: Simplify right side
    14,087.62x = 121,770,134.05
  5. Step 5: Solve for x
    x = 121,770,134.05/14,087.62
  6. Step 6: Final answer
    x = 8,643.77

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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.