Home / 13,909.24-20,864.40-3,521.26

Finding the Fourth Proportional to 13,909.24, 20,864.40 and 3,521.26

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Solution

The fourth proportional to 13,909.24, 20,864.40 and 3,521.26 is: 5,282.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.24 : 20,864.40 = 3,521.26 : x
  2. Step 2: Convert to fraction form
    13,909.24/20,864.40 = 3,521.26/x
  3. Step 3: Cross multiply
    13,909.24x = 20,864.40 × 3,521.26
  4. Step 4: Simplify right side
    13,909.24x = 73,468,977.14
  5. Step 5: Solve for x
    x = 73,468,977.14/13,909.24
  6. Step 6: Final answer
    x = 5,282.03

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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.