Home / 13,521.36-20,272.33-6,122.01

Finding the Fourth Proportional to 13,521.36, 20,272.33 and 6,122.01

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Solution

The fourth proportional to 13,521.36, 20,272.33 and 6,122.01 is: 9,178.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.36 : 20,272.33 = 6,122.01 : x
  2. Step 2: Convert to fraction form
    13,521.36/20,272.33 = 6,122.01/x
  3. Step 3: Cross multiply
    13,521.36x = 20,272.33 × 6,122.01
  4. Step 4: Simplify right side
    13,521.36x = 124,107,456.22
  5. Step 5: Solve for x
    x = 124,107,456.22/13,521.36
  6. Step 6: Final answer
    x = 9,178.62

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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.