Home / 13,982.52-21,008.34-12,323.64

Finding the Fourth Proportional to 13,982.52, 21,008.34 and 12,323.64

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Solution

The fourth proportional to 13,982.52, 21,008.34 and 12,323.64 is: 18,515.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.52 : 21,008.34 = 12,323.64 : x
  2. Step 2: Convert to fraction form
    13,982.52/21,008.34 = 12,323.64/x
  3. Step 3: Cross multiply
    13,982.52x = 21,008.34 × 12,323.64
  4. Step 4: Simplify right side
    13,982.52x = 258,899,219.16
  5. Step 5: Solve for x
    x = 258,899,219.16/13,982.52
  6. Step 6: Final answer
    x = 18,515.92

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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.