Home / 13,357.75-20,022.95-6,780.34

Finding the Fourth Proportional to 13,357.75, 20,022.95 and 6,780.34

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Solution

The fourth proportional to 13,357.75, 20,022.95 and 6,780.34 is: 10,163.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.75 : 20,022.95 = 6,780.34 : x
  2. Step 2: Convert to fraction form
    13,357.75/20,022.95 = 6,780.34/x
  3. Step 3: Cross multiply
    13,357.75x = 20,022.95 × 6,780.34
  4. Step 4: Simplify right side
    13,357.75x = 135,762,374.90
  5. Step 5: Solve for x
    x = 135,762,374.90/13,357.75
  6. Step 6: Final answer
    x = 10,163.57

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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.