Home / 13,582.82-20,361.15-7,422.50

Finding the Fourth Proportional to 13,582.82, 20,361.15 and 7,422.50

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Solution

The fourth proportional to 13,582.82, 20,361.15 and 7,422.50 is: 11,126.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.82 : 20,361.15 = 7,422.50 : x
  2. Step 2: Convert to fraction form
    13,582.82/20,361.15 = 7,422.50/x
  3. Step 3: Cross multiply
    13,582.82x = 20,361.15 × 7,422.50
  4. Step 4: Simplify right side
    13,582.82x = 151,130,635.88
  5. Step 5: Solve for x
    x = 151,130,635.88/13,582.82
  6. Step 6: Final answer
    x = 11,126.60

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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.