Home / 13,538.26-20,293.56-7,682.50

Finding the Fourth Proportional to 13,538.26, 20,293.56 and 7,682.50

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Solution

The fourth proportional to 13,538.26, 20,293.56 and 7,682.50 is: 11,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.26 : 20,293.56 = 7,682.50 : x
  2. Step 2: Convert to fraction form
    13,538.26/20,293.56 = 7,682.50/x
  3. Step 3: Cross multiply
    13,538.26x = 20,293.56 × 7,682.50
  4. Step 4: Simplify right side
    13,538.26x = 155,905,274.70
  5. Step 5: Solve for x
    x = 155,905,274.70/13,538.26
  6. Step 6: Final answer
    x = 11,515.90

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1.5x scale

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.