Home / 13,521.14-20,282.78-4,758.02

Finding the Fourth Proportional to 13,521.14, 20,282.78 and 4,758.02

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Solution

The fourth proportional to 13,521.14, 20,282.78 and 4,758.02 is: 7,137.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.14 : 20,282.78 = 4,758.02 : x
  2. Step 2: Convert to fraction form
    13,521.14/20,282.78 = 4,758.02/x
  3. Step 3: Cross multiply
    13,521.14x = 20,282.78 × 4,758.02
  4. Step 4: Simplify right side
    13,521.14x = 96,505,872.90
  5. Step 5: Solve for x
    x = 96,505,872.90/13,521.14
  6. Step 6: Final answer
    x = 7,137.41

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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.